diff --git a/__tests__/AddTrendlinesToAChart.tests.ps1 b/__tests__/AddTrendlinesToAChart.tests.ps1
index afc7f8e..18bf7e4 100644
--- a/__tests__/AddTrendlinesToAChart.tests.ps1
+++ b/__tests__/AddTrendlinesToAChart.tests.ps1
@@ -1,4 +1,7 @@
-Describe "Test adding trendlines to charts" {
+Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$notWindows =  ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' )
+Describe "Test adding trendlines to charts" {
     BeforeAll {
         $script:data = ConvertFrom-Csv @"
 Region,Item,TotalSold
@@ -21,7 +24,7 @@ South,avocado,73
         Remove-Item $xlfile -ErrorAction SilentlyContinue
     }
 
-    It "Should add a linear trendline" {
+    It "Should add a linear trendline".PadRight(90)  {
 
         $cd = New-ExcelChartDefinition -XRange Region -YRange TotalSold -ChartType ColumnClustered -ChartTrendLine Linear
         $data | Export-Excel $xlfile -ExcelChartDefinition $cd -AutoNameRange
@@ -34,7 +37,7 @@ South,avocado,73
         Close-ExcelPackage $excel
     }
 
-    It "Should add a MovingAvgerage trendline" {
+    It "Should add a MovingAvgerage trendline".PadRight(90)  {
 
         $cd = New-ExcelChartDefinition -XRange Region -YRange TotalSold -ChartType ColumnClustered -ChartTrendLine MovingAvgerage
         $data | Export-Excel $xlfile -ExcelChartDefinition $cd -AutoNameRange
diff --git a/__tests__/Compare-WorkSheet.tests.ps1 b/__tests__/Compare-WorkSheet.tests.ps1
index d9f1311..e3c300e 100644
--- a/__tests__/Compare-WorkSheet.tests.ps1
+++ b/__tests__/Compare-WorkSheet.tests.ps1
@@ -1,4 +1,6 @@
 #Requires -Modules Pester
+if ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' ) {return}   #Currently this test outputs windows services so only run on Windows.
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() }
 Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
 if ($PSVersionTable.PSVersion.Major -gt 5) { Write-Warning "Can't test grid view on V6 and later" }
 else                                       {Add-Type -AssemblyName System.Windows.Forms }
@@ -19,7 +21,7 @@ Describe "Compare Worksheet" {
             $s.RemoveAt(5)
             $s | Export-Excel -Path $env:temp\server2.xlsx
             #Assume default worksheet name, (sheet1) and column header for key ("name")
-            $comp = compare-WorkSheet "$env:temp\Server1.xlsx" "$env:temp\Server2.xlsx" | Sort-Object -Property _row, _file
+            $comp = compare-WorkSheet "$env:temp\server1.xlsx" "$env:temp\server2.xlsx" | Sort-Object -Property _row, _file
         }
         it "Found the right number of differences                                                  " {
             $comp                                                         | should not beNullOrEmpty
@@ -55,13 +57,13 @@ Describe "Compare Worksheet" {
                 $ModulePath = (Get-Command -Name 'Compare-WorkSheet').Module.Path
                 $PowerShellExec = if ($PSEdition -eq 'Core') {'pwsh.exe'} else {'powershell.exe'}
                 $PowerShellPath = Join-Path -Path $PSHOME -ChildPath $PowerShellExec
-                . $PowerShellPath -Command ("Import-Module $ModulePath; " + '$null = Compare-WorkSheet "$env:temp\Server1.xlsx" "$env:temp\Server2.xlsx" -BackgroundColor ([System.Drawing.Color]::LightGreen) -GridView; Start-Sleep -sec 5')
+                . $PowerShellPath -Command ("Import-Module $ModulePath; " + '$null = Compare-WorkSheet "$env:temp\server1.xlsx" "$env:temp\server2.xlsx" -BackgroundColor ([System.Drawing.Color]::LightGreen) -GridView; Start-Sleep -sec 5')
             }
             else {
-                $null = Compare-WorkSheet "$env:temp\Server1.xlsx" "$env:temp\Server2.xlsx" -BackgroundColor ([System.Drawing.Color]::LightGreen) -GridView:$useGrid
+                $null = Compare-WorkSheet "$env:temp\server1.xlsx" "$env:temp\server2.xlsx" -BackgroundColor ([System.Drawing.Color]::LightGreen) -GridView:$useGrid
             }
-            $xl1  = Open-ExcelPackage -Path "$env:temp\Server1.xlsx"
-            $xl2  = Open-ExcelPackage -Path "$env:temp\Server2.xlsx"
+            $xl1  = Open-ExcelPackage -Path "$env:temp\server1.xlsx"
+            $xl2  = Open-ExcelPackage -Path "$env:temp\server2.xlsx"
             $s1Sheet = $xl1.Workbook.Worksheets[1]
             $s2Sheet = $xl2.Workbook.Worksheets[1]
         }
@@ -85,9 +87,9 @@ Describe "Compare Worksheet" {
 
     Context "Setting the forgound to highlight changed properties" {
         BeforeAll {
-            $null = compare-WorkSheet "$env:temp\Server1.xlsx" "$env:temp\Server2.xlsx" -AllDataBackgroundColor([System.Drawing.Color]::white) -BackgroundColor ([System.Drawing.Color]::LightGreen)  -FontColor ([System.Drawing.Color]::DarkRed)
-            $xl1  = Open-ExcelPackage -Path "$env:temp\Server1.xlsx"
-            $xl2  = Open-ExcelPackage -Path "$env:temp\Server2.xlsx"
+            $null = compare-WorkSheet "$env:temp\server1.xlsx" "$env:temp\server2.xlsx" -AllDataBackgroundColor([System.Drawing.Color]::white) -BackgroundColor ([System.Drawing.Color]::LightGreen)  -FontColor ([System.Drawing.Color]::DarkRed)
+            $xl1  = Open-ExcelPackage -Path "$env:temp\server1.xlsx"
+            $xl2  = Open-ExcelPackage -Path "$env:temp\server2.xlsx"
             $s1Sheet = $xl1.Workbook.Worksheets[1]
             $s2Sheet = $xl2.Workbook.Worksheets[1]
         }
@@ -130,9 +132,9 @@ Describe "Compare Worksheet" {
 
             $s | Select-Object -Property ServiceName, DisplayName, StartType, ServiceType | Export-Excel -Path $env:temp\server2.xlsx -WorkSheetname server2
             #Assume default worksheet name, (sheet1) and column header for key ("name")
-            $comp = compare-WorkSheet "$env:temp\Server1.xlsx" "$env:temp\Server2.xlsx" -WorkSheetName Server1,Server2 -Key ServiceName -Property DisplayName,StartType -AllDataBackgroundColor ([System.Drawing.Color]::AliceBlue) -BackgroundColor ([System.Drawing.Color]::White) -FontColor ([System.Drawing.Color]::Red)   | Sort-Object _row,_file
-            $xl1  = Open-ExcelPackage -Path "$env:temp\Server1.xlsx"
-            $xl2  = Open-ExcelPackage -Path "$env:temp\Server2.xlsx"
+            $comp = compare-WorkSheet "$env:temp\server1.xlsx" "$env:temp\server2.xlsx" -WorkSheetName Server1,Server2 -Key ServiceName -Property DisplayName,StartType -AllDataBackgroundColor ([System.Drawing.Color]::AliceBlue) -BackgroundColor ([System.Drawing.Color]::White) -FontColor ([System.Drawing.Color]::Red)   | Sort-Object _row,_file
+            $xl1  = Open-ExcelPackage -Path "$env:temp\server1.xlsx"
+            $xl2  = Open-ExcelPackage -Path "$env:temp\server2.xlsx"
             $s1Sheet = $xl1.Workbook.Worksheets["server1"]
             $s2Sheet = $xl2.Workbook.Worksheets["server2"]
         }
@@ -188,7 +190,7 @@ Describe "Compare Worksheet" {
 Describe "Merge Worksheet" {
     Context "Merge with 3 properties" {
         BeforeAll {
-            Remove-Item -Path  "$env:temp\server*.xlsx" , "$env:temp\Combined*.xlsx" -ErrorAction SilentlyContinue
+            Remove-Item -Path  "$env:temp\server*.xlsx" , "$env:temp\combined*.xlsx" -ErrorAction SilentlyContinue
             [System.Collections.ArrayList]$s = get-service | Select-Object -first 25 -Property *
 
             $s | Export-Excel -Path $env:temp\server1.xlsx
@@ -205,7 +207,7 @@ Describe "Merge Worksheet" {
 
             $s | Export-Excel -Path $env:temp\server2.xlsx
             #Assume default worksheet name, (sheet1) and column header for key ("name")
-            Merge-Worksheet -Referencefile "$env:temp\server1.xlsx" -Differencefile  "$env:temp\Server2.xlsx" -OutputFile  "$env:temp\combined1.xlsx"  -Property name,displayname,startType -Key name
+            Merge-Worksheet -Referencefile "$env:temp\server1.xlsx" -Differencefile  "$env:temp\server2.xlsx" -OutputFile  "$env:temp\combined1.xlsx"  -Property name,displayname,startType -Key name
             $excel = Open-ExcelPackage -Path "$env:temp\combined1.xlsx"
             $ws    = $excel.Workbook.Worksheets["sheet1"]
         }
@@ -247,14 +249,14 @@ Describe "Merge Worksheet" {
     }
     Context "Wider data set"    {
         it "Coped with columns beyond Z in the Output sheet                                        " {
-            { Merge-Worksheet -Referencefile "$env:temp\server1.xlsx" -Differencefile  "$env:temp\Server2.xlsx" -OutputFile  "$env:temp\combined2.xlsx"  }           | Should not throw
+            { Merge-Worksheet -Referencefile "$env:temp\server1.xlsx" -Differencefile  "$env:temp\server2.xlsx" -OutputFile  "$env:temp\combined2.xlsx"  }           | Should not throw
         }
     }
 }
 Describe "Merge Multiple sheets" {
     Context "Merge 3 sheets with 3 properties" {
         BeforeAll {
-            Remove-Item -Path  "$env:temp\server*.xlsx" , "$env:temp\Combined*.xlsx" -ErrorAction SilentlyContinue
+            Remove-Item -Path  "$env:temp\server*.xlsx" , "$env:temp\combined*.xlsx" -ErrorAction SilentlyContinue
             [System.Collections.ArrayList]$s = get-service | Select-Object -first 25 -Property Name,DisplayName,StartType
             $s | Export-Excel -Path $env:temp\server1.xlsx
 
@@ -281,7 +283,7 @@ Describe "Merge Multiple sheets" {
 
             $s | Export-Excel -Path $env:temp\server3.xlsx
 
-            Merge-MultipleSheets -Path "$env:temp\server1.xlsx", "$env:temp\Server2.xlsx","$env:temp\Server3.xlsx" -OutputFile "$env:temp\combined3.xlsx"  -Property name,displayname,startType -Key name
+            Merge-MultipleSheets -Path "$env:temp\server1.xlsx", "$env:temp\server2.xlsx","$env:temp\server3.xlsx" -OutputFile "$env:temp\combined3.xlsx"  -Property name,displayname,startType -Key name
             $excel = Open-ExcelPackage -Path "$env:temp\combined3.xlsx"
             $ws    = $excel.Workbook.Worksheets["sheet1"]
 
@@ -295,10 +297,10 @@ Describe "Merge Multiple sheets" {
             $ws.Cells[ 1,6 ].Value                                        | Should     be "Server2 StartType"
             $ws.Column(7).hidden                                          | Should     be $true
             $ws.Cells[ 1,8].Value                                         | Should     be "Server2 Row"
-            $ws.Cells[ 1,9 ].Value                                        | Should     be "Server3 DisplayName"
-            $ws.Cells[ 1,10].Value                                        | Should     be "Server3 StartType"
+            $ws.Cells[ 1,9 ].Value                                        | Should     be "server3 DisplayName"
+            $ws.Cells[ 1,10].Value                                        | Should     be "server3 StartType"
             $ws.Column(11).hidden                                         | Should     be $true
-            $ws.Cells[ 1,12].Value                                        | Should     be "Server3 Row"
+            $ws.Cells[ 1,12].Value                                        | Should     be "server3 Row"
         }
         it "Joined the three sheets correctly                                                      " {
             $ws.Cells[ 2,3 ].Value                                        | Should     be $ws.Cells[ 2,5 ].Value
diff --git a/__tests__/ConvertFromExcelToSQLInsert.tests.ps1 b/__tests__/ConvertFromExcelToSQLInsert.tests.ps1
index 0b53e46..bda8890 100644
--- a/__tests__/ConvertFromExcelToSQLInsert.tests.ps1
+++ b/__tests__/ConvertFromExcelToSQLInsert.tests.ps1
@@ -1,5 +1,5 @@
 Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
-
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
 $xlFile = "$env:TEMP\testSQL.xlsx"
 
 Describe "ConvertFrom-ExcelToSQLInsert" {
@@ -16,7 +16,7 @@ Describe "ConvertFrom-ExcelToSQLInsert" {
         Remove-Item $xlFile -Recurse -Force -ErrorAction Ignore
     }
 
-    It "Should be empty double single quotes" {
+    It "Should be empty double single quotes".PadRight(90)  {
         $expected="INSERT INTO Sheet1 ('Name', 'Age') Values('John', '');"
 
         $actual = ConvertFrom-ExcelToSQLInsert -Path $xlFile Sheet1
@@ -24,7 +24,7 @@ Describe "ConvertFrom-ExcelToSQLInsert" {
         $actual | should be $expected
     }
 
-     It "Should have NULL" {
+     It "Should have NULL".PadRight(90)  {
         $expected="INSERT INTO Sheet1 ('Name', 'Age') Values('John', NULL);"
 
         $actual = ConvertFrom-ExcelToSQLInsert -Path $xlFile Sheet1 -ConvertEmptyStringsToNull
diff --git a/__tests__/Copy-ExcelWorksheet.Tests.ps1 b/__tests__/Copy-ExcelWorksheet.Tests.ps1
index 9cb2635..04c9809 100644
--- a/__tests__/Copy-ExcelWorksheet.Tests.ps1
+++ b/__tests__/Copy-ExcelWorksheet.Tests.ps1
@@ -1,3 +1,6 @@
+if ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' ) {return}   #Currently this test outputs windows services so only run on Windows.
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+
 $path1 = "$env:TEMP\Test1.xlsx"
 $path2 = "$env:TEMP\Test2.xlsx"
 Remove-item -Path $path1, $path2  -ErrorAction SilentlyContinue
@@ -91,8 +94,8 @@ Describe "Copy-Worksheet" {
             $xlfile = "$env:TEMP\reports.xlsx"
             $xlfileArchive = "$env:TEMP\reportsArchive.xlsx"
 
-            rm $xlfile -ErrorAction SilentlyContinue
-            rm $xlfileArchive -ErrorAction SilentlyContinue
+            Remove-Item $xlfile -ErrorAction SilentlyContinue
+            Remove-Item $xlfileArchive -ErrorAction SilentlyContinue
 
             $sheets = echo 1.1.2019 1.2.2019 1.3.2019 1.4.2019 1.5.2019
 
@@ -119,8 +122,8 @@ Describe "Copy-Worksheet" {
             $xlfile = "$env:TEMP\reports.xlsx"
             $xlfileArchive = "$env:TEMP\reportsArchive.xlsx"
 
-            rm $xlfile -ErrorAction SilentlyContinue
-            rm $xlfileArchive -ErrorAction SilentlyContinue
+            Remove-Item $xlfile -ErrorAction SilentlyContinue
+            Remove-Item $xlfileArchive -ErrorAction SilentlyContinue
 
             $sheets = echo 1.1.2019 1.2.2019 1.3.2019 1.4.2019 1.5.2019
 
diff --git a/__tests__/Export-Excel.Tests.ps1 b/__tests__/Export-Excel.Tests.ps1
index 1fb9543..964efc4 100644
--- a/__tests__/Export-Excel.Tests.ps1
+++ b/__tests__/Export-Excel.Tests.ps1
@@ -1,12 +1,14 @@
 #Requires -Modules Pester
 
-#Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$notWindows =  ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' )
 
 if (Get-process -Name Excel,xlim -ErrorAction SilentlyContinue) {    Write-Warning -Message "You need to close Excel before running the tests." ; return}
 Describe ExportExcel {
 
     Context "#Example 1      # Creates and opens a file with the right number of rows and columns" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path -ErrorAction SilentlyContinue
         #Test with a maximum of 100 processes for speed; export all properties, then export smaller subsets.
         $processes = Get-Process | where {$_.StartTime} | Select-Object -first 100 -Property * -excludeProperty  Parent
@@ -68,7 +70,7 @@ Describe ExportExcel {
     }
 
     Context "                # NoAliasOrScriptPropeties -ExcludeProperty and -DisplayPropertySet work" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path  -ErrorAction SilentlyContinue
         $processes = Get-Process | Select-Object -First 100
         $propertyNames = $Processes[0].psobject.properties.where( {$_.MemberType -eq 'Property'}).name
@@ -117,7 +119,7 @@ Describe ExportExcel {
 
     Context "#Example 2      # Exports a list of numbers and applies number format " {
 
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path -ErrorAction SilentlyContinue
         #testing -ReturnRange switch and applying number format to Formulas as well as values.
         $returnedRange =   @($null, -1, 0, 34, 777, "", -0.5, 119, -0.1, 234, 788,"=A9+A10")   | Export-Excel -NumberFormat '[Blue]$#,##0.00;[Red]-$#,##0.00' -Path $path -ReturnRange
@@ -156,7 +158,7 @@ Describe ExportExcel {
 
     Context "                # Number format parameter" {
         BeforeAll {
-            $path = "$env:temp\test.xlsx"
+            $path = Join-Path $Env:TEMP "test.xlsx"
             Remove-Item -Path  $path -ErrorAction SilentlyContinue
             1..10  | Export-Excel -Path $path -Numberformat 'Number'
             1..10  | Export-Excel -Path $path -Numberformat 'Percentage' -Append
@@ -179,7 +181,7 @@ Describe ExportExcel {
 
         if ((Get-Culture).NumberFormat.CurrencySymbol -eq "£") {$OtherCurrencySymbol = "$"}
         else {$OtherCurrencySymbol = "£"}
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         $warnVar = $null
         #Test correct export of different data types and number formats; test hyperlinks, test -NoNumberConversion test object is converted to a string with no warnings, test calcuation of formula
         Remove-item -Path $path -ErrorAction SilentlyContinue
@@ -296,7 +298,7 @@ Describe ExportExcel {
 
     Context "#               # Setting cells for different data types with -noHeader" {
 
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path -ErrorAction SilentlyContinue
         #Test -NoHeader & -NoNumberConversion
         [PSCustOmobject][Ordered]@{
@@ -357,7 +359,7 @@ Describe ExportExcel {
         #Test  New-ConditionalText builds correctly
         $ct = New-ConditionalText -ConditionalType GreaterThan 525 -ConditionalTextColor ([System.Drawing.Color]::DarkRed) -BackgroundColor ([System.Drawing.Color]::LightPink)
 
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path -ErrorAction SilentlyContinue
         #Test -ConditionalText with a single conditional spec.
         Write-Output 489 668 299 777 860 151 119 497 234 788 | Export-Excel -Path $path -ConditionalText $ct
@@ -385,8 +387,9 @@ Describe ExportExcel {
     }
 
     Context "#Example 6      # Adding multiple conditional formats using short form syntax. " {
+        if ($notwindows)  {Write-warning "Test only runs on Windows" ; return}
         #Test adding mutliple conditional blocks and using the minimal syntax for new-ConditionalText
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-item -Path $path -ErrorAction SilentlyContinue
 
         #Testing -Passthrough
@@ -448,9 +451,11 @@ Describe ExportExcel {
     }
 
     Context "#Examples 8 & 9 # Adding Pivot tables and charts from parameters" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test -passthru and -worksheetName creating a new, named, sheet in an existing file.
-        $Excel = Get-Process |  Select-Object -first 20 -Property Name, cpu, pm, handles, company |  Export-Excel  $path -WorkSheetname Processes -PassThru
+        $Script:Procs= Get-Process |  Select-Object -first 20 -Property Name, cpu, pm, handles, company
+        if ($Procs.count -lt 20) {Write-warning "Not enough proceses were returned by get-Process to run the test." ; return}
+        $Excel = $Script:Procs|  Export-Excel  $path -WorkSheetname Processes -PassThru
         #Testing -Excel Pacakage and adding a Pivot-table as a second step. Want to save and re-open it ...
         Export-Excel -ExcelPackage $Excel -WorkSheetname Processes -IncludePivotTable -PivotRows Company -PivotData PM -NoTotalsInPivot -PivotDataToColumn -Activate
 
@@ -507,7 +512,7 @@ Describe ExportExcel {
     }
 
     Context "                # Add-Worksheet inserted sheets, moved them correctly, and copied a sheet" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test the -CopySource and -Movexxxx parameters for Add-WorkSheet
         $Excel = Open-ExcelPackage  $path
         #At this point Sheets Should be in the order Sheet1, Processes, ProcessesPivotTable
@@ -529,7 +534,7 @@ Describe ExportExcel {
             $excel.Workbook.Worksheets[5].Name  | Should be "Processes"
             $excel.Workbook.Worksheets[6].Name  | Should be "NearDone"
             $excel.Workbook.Worksheets[7].Name  | Should be "Sheet1"
-        }
+        } -skip:($Procs.count -lt 20)
 
         it "Cloned 'Sheet1' to 'NewSheet'                                                          " {
             $newWs = $excel.Workbook.Worksheets["NewSheet"]
@@ -542,13 +547,15 @@ Describe ExportExcel {
     }
 
     Context "                # Create and append with Start row and Start Column, inc ranges and Pivot table. " {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         remove-item -Path $path -ErrorAction SilentlyContinue
         #Catch warning
         $warnVar = $null
         #Test -Append with no existing sheet. Test adding a named pivot table from command line parameters and extending ranges when they're not specified explictly
-        Get-Process | Select-Object -first 10 -Property Name, cpu, pm, handles, company  | Export-Excel -StartRow 3 -StartColumn 3 -BoldTopRow -IncludePivotTable  -PivotRows Company -PivotData PM -PivotTableName 'PTOffset' -Path $path -WorkSheetname withOffset -Append -PivotFilter Name -NoTotalsInPivot  -RangeName procs  -AutoFilter -AutoNameRange
-        Get-Process | Select-Object -last  10 -Property Name, cpu, pm, handles, company  | Export-Excel -StartRow 3 -StartColumn 3 -BoldTopRow -IncludePivotTable  -PivotRows Company -PivotData PM -PivotTableName 'PTOffset' -Path $path -WorkSheetname withOffset -Append -WarningAction SilentlyContinue -WarningVariable warnvar
+        $Script:Procs= Get-Process
+        if ($Procs.count -lt 20) {Write-warning "Not enough proceses were returned by get-Process to run the test." ; return}
+        $Script:Procs| Select-Object -First 10 -Property Name, cpu, pm, handles, company  | Export-Excel -StartRow 3 -StartColumn 3 -BoldTopRow -IncludePivotTable  -PivotRows Company -PivotData PM -PivotTableName 'PTOffset' -Path $path -WorkSheetname withOffset -Append -PivotFilter Name -NoTotalsInPivot  -RangeName procs  -AutoFilter -AutoNameRange
+        $Script:Procs| Select-Object -Last  10 -Property Name, cpu, pm, handles, company  | Export-Excel -StartRow 3 -StartColumn 3 -BoldTopRow -IncludePivotTable  -PivotRows Company -PivotData PM -PivotTableName 'PTOffset' -Path $path -WorkSheetname withOffset -Append -WarningAction SilentlyContinue -WarningVariable warnvar
         $Excel = Open-ExcelPackage   $path
         $dataWs = $Excel.Workbook.Worksheets["withOffset"]
         $pt = $Excel.Workbook.Worksheets["PTOffset"].PivotTables[0]
@@ -592,11 +599,14 @@ Describe ExportExcel {
     }
 
     Context "                # Create and append explicit and auto table and range extension" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test -Append automatically extends a table, even when it is not specified in the append command;
-        Get-Process | Select-Object -first 10 -Property Name, cpu, pm, handles, company  | Export-Excel -Path $path  -TableName ProcTab -AutoNameRange   -WorkSheetname NoOffset -ClearSheet
+        $Script:Procs= Get-process
+        if ($Procs.count -lt 20) {Write-warning "Not enough proceses were returned by get-Process to run the test." ; return}
+
+        $Script:Procs| Select-Object -first 10 -Property Name, cpu, pm, handles, company  | Export-Excel -Path $path  -TableName ProcTab -AutoNameRange   -WorkSheetname NoOffset -ClearSheet
         #Test number format applying to new data
-        Get-Process | Select-Object -last  10 -Property Name, cpu, pm, handles, company  | Export-Excel -Path $path                     -AutoNameRange   -WorkSheetname NoOffset -Append -Numberformat 'Number'
+        $Script:Procs| Select-Object -last  10 -Property Name, cpu, pm, handles, company  | Export-Excel -Path $path                     -AutoNameRange   -WorkSheetname NoOffset -Append -Numberformat 'Number'
         $Excel = Open-ExcelPackage   $path
         $dataWs = $Excel.Workbook.Worksheets["NoOffset"]
 
@@ -625,7 +635,8 @@ Describe ExportExcel {
     }
 
     Context "#Example 11     # Create and append with title, inc ranges and Pivot table" {
-        $path = "$env:TEMP\Test.xlsx"
+        if ($Procs.count -lt 20) {Write-warning "Not enough proceses were returned by get-Process to run the test." ; return}
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test New-PivotTableDefinition builds definition using -Pivotfilter and -PivotTotals options.
         $ptDef = [ordered]@{}
         $ptDef += New-PivotTableDefinition -PivotTableName "PT1" -SourceWorkSheet 'Sheet1' -PivotRows "Status"  -PivotData @{'Status'  = 'Count'} -PivotTotals Columns -PivotFilter "StartType" -IncludePivotChart -ChartType BarClustered3D  -ChartTitle "Services by status" -ChartHeight 512 -ChartWidth 768 -ChartRow 10 -ChartColumn 0 -NoLegend -PivotColumns CanPauseAndContinue
@@ -707,8 +718,8 @@ Describe ExportExcel {
     }
 
     Context "#Example 13     # Formatting and another way to do a pivot.  " {
-        $path = "$env:TEMP\Test.xlsx"
-        Remove-Item $path
+        $path = Join-Path $Env:TEMP "test.xlsx"
+        Remove-Item $path -ErrorAction SilentlyContinue
         #Test freezing top row/first column, adding formats and a pivot table - from Add-Pivot table not a specification variable - after the export
         $excel = Get-Process | Select-Object -Property Name, Company, Handles, CPU, PM, NPM, WS | Export-Excel -Path $path -ClearSheet -WorkSheetname "Processes" -FreezeTopRowFirstColumn -PassThru
         $sheet = $excel.Workbook.Worksheets["Processes"]
@@ -736,8 +747,6 @@ Describe ExportExcel {
         }
         it "Applied the formating                                                                  " {
             $sheet                                                      | Should not beNullOrEmpty
-            $sheet.Column(1).wdith                                      | Should not be  $sheet.DefaultColWidth
-            $sheet.Column(7).wdith                                      | Should not be  $sheet.DefaultColWidth
             $sheet.Column(1).style.font.bold                            | Should     be  $true
             $sheet.Column(2).style.wraptext                             | Should     be  $true
             $sheet.Column(2).width                                      | Should     be  29
@@ -760,6 +769,10 @@ Describe ExportExcel {
             $sheet.ConditionalFormatting[2].Formula                     | Should     be  '104857600'
             $sheet.ConditionalFormatting[2].Style.Font.Color.Color.Name | Should     be  'ffff0000'
         }
+        it "Applied autowidth                                                                      " {
+            $sheet.Column(1).wdith                                      | Should not be  $sheet.DefaultColWidth
+            $sheet.Column(7).wdith                                      | Should not be  $sheet.DefaultColWidth
+        } -skip:$notwindows
         it "Created the named ranges                                                               " {
             $sheet.Names.Count                                          | Should     be 7
             $sheet.Names[0].Start.Column                                | Should     be 1
@@ -787,7 +800,7 @@ Describe ExportExcel {
     }
 
     Context "                # Chart from MultiSeries.ps1 in the Examples\charts Directory" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-Item -Path   $path -ErrorAction SilentlyContinue
         #Test we haven't missed any parameters on New-ChartDefinition which are on add chart or vice versa.
 
@@ -810,7 +823,7 @@ Describe ExportExcel {
             $data[1].Handles                                            | Should not beNullOrEmpty
             $data[1].PM                                                 | Should not beNullOrEmpty
             $data[1].VirtualMemorySize                                  | Should not beNullOrEmpty
-        }
+        } -skip:($procs.count -lt 20)
         $c = New-ExcelChartDefinition -Title Stats -ChartType LineMarkersStacked   -XRange "Processes[Name]" -YRange "Processes[PM]", "Processes[VirtualMemorySize]" -SeriesHeader 'PM', 'VMSize'
 
         it "Created the Excel chart definition                                                     " {
@@ -845,7 +858,7 @@ Describe ExportExcel {
     }
 
     Context "                # variation of plot.ps1 from Examples Directory using Add chart outside ExportExcel" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test inserting a fomual
         $excel = 0..360 | ForEach-Object {[pscustomobject][ordered]@{x = $_; Sinx = "=Sin(Radians(x)) "}} | Export-Excel -AutoNameRange -Path $path -WorkSheetname SinX -ClearSheet -FreezeFirstColumn -PassThru
         #Test-Add Excel Chart to existing data. Test add Conditional formatting with a formula
@@ -885,8 +898,9 @@ Describe ExportExcel {
         }
         Close-ExcelPackage -ExcelPackage $excel -nosave
     }
+
     Context "                # Quick line chart" {
-        $path = "$env:TEMP\Test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-Item -Path $path -ErrorAction SilentlyContinue
         #test drawing a chart when data doesn't have a string
         0..360 | ForEach-Object {[pscustomobject][ordered]@{x = $_; Sinx = "=Sin(Radians(x)) "}} | Export-Excel -AutoNameRange  -Path $path -LineChart
@@ -903,11 +917,11 @@ Describe ExportExcel {
 
     }
 
-
     Context "                # Quick Pie chart and three icon conditional formating" {
-        $path = "$Env:TEMP\Pie.xlsx"
+        $path = Join-Path $Env:TEMP "Pie.xlsx"
         Remove-Item -Path $path -ErrorAction SilentlyContinue
-
+        $Script:Procs= Get-Process
+        if ($Procs.count -lt 20) {Write-warning "Not enough proceses were returned by get-Process to run the test." ; return}
         $range = Get-Process| Group-Object -Property company | Where-Object -Property name |
              Select-Object -Property Name, @{n="TotalPm";e={($_.group | Measure-Object -sum -Property pm).sum }} |
                  Export-Excel -NoHeader -AutoNameRange -path $path -ReturnRange  -PieChart -ShowPercent
@@ -943,7 +957,8 @@ Describe ExportExcel {
     }
 
     Context "                # Awkward multiple tables" {
-        $path = "$Env:TEMP\test.xlsx"
+        if ($notWindows) {Write-warning "Test only runs on Windows" ; return}
+        $path = Join-Path $Env:TEMP "test.xlsx"
         #Test creating 3 on overlapping tables on the same page. Create rightmost the left most then middle.
         remove-item -Path $path -ErrorAction SilentlyContinue
         $r = Get-ChildItem -path C:\WINDOWS\system32 -File
@@ -978,7 +993,7 @@ Describe ExportExcel {
     }
 
     Context "                # Parameters and ParameterSets" {
-        $Path = "$Env:TEMP\test.xlsx"
+        $Path = join-path $env:TEMP "temp.xlsx"
         Remove-Item -Path $Path -ErrorAction SilentlyContinue
         $Processes = Get-Process | Select-Object -first 10 -Property Name, cpu, pm, handles, company
 
@@ -1013,24 +1028,26 @@ Describe ExportExcel {
             $ExcelPackage.File | Should Be $Path
             $Worksheet.Tables[0].Name | Should Be 'Table1'
         }
-        it "Now will use temp Path, set TableName with generated name and AutoSize".PadRight(87) {
+        it "Now will use temp Path, set TableName with generated name".PadRight(87) {
             $ExcelPackage = $Processes | Export-Excel -Now -PassThru
-            $Worksheet = $ExcelPackage.Workbook.Worksheets[1]
-
+            $Script:Worksheet = $ExcelPackage.Workbook.Worksheets[1]
             $ExcelPackage.File | Should BeLike ([IO.Path]::GetTempPath() + '*')
-            $Worksheet.Tables[0].Name | Should Be 'Table1'
-            $Worksheet.AutoFilterAddress | Should BeNullOrEmpty
-            $Worksheet.Column(5).Width | Should BeGreaterThan 9.5
-        }
+            $Script:Worksheet.Tables[0].Name | Should Be 'Table1'
+            $Script:Worksheet.AutoFilterAddress | Should BeNullOrEmpty}
+        it "Applies AutoSize with these".PadRight(87) {
+            $Script:Worksheet.Column(5).Width | Should BeGreaterThan 9.5
+        } -skip:$notwindows
         it "Now allows override of Path and TableName".PadRight(87) {
             $ExcelPackage = $Processes | Export-Excel -Now -PassThru -Path $Path -TableName:$false
-            $Worksheet = $ExcelPackage.Workbook.Worksheets[1]
+            $Script:Worksheet = $ExcelPackage.Workbook.Worksheets[1]
 
             $ExcelPackage.File | Should Be $Path
-            $Worksheet.Tables | Should BeNullOrEmpty
-            $Worksheet.AutoFilterAddress | Should BeNullOrEmpty
-            $Worksheet.Column(5).Width | Should BeGreaterThan 9.5
+            $Script:Worksheet.Tables | Should BeNullOrEmpty
+            $Script:Worksheet.AutoFilterAddress | Should BeNullOrEmpty
         }
+        it "Allows AutoSize with the override".PadRight(87) {
+            $Script:Worksheet.Column(5).Width | Should BeGreaterThan 9.5
+        } -skip:$notwindows
         <# Mock looks unreliable need to check
         Mock -CommandName 'Invoke-Item'
         it "Now will Show".PadRight(87) {
@@ -1052,11 +1069,14 @@ Describe ExportExcel {
         }
         it "Now allows to set TableName".PadRight(87) {
             $ExcelPackage = $Processes | Export-Excel -Now -PassThru -TableName 'Data'
-            $Worksheet = $ExcelPackage.Workbook.Worksheets[1]
+            $Script:Worksheet = $ExcelPackage.Workbook.Worksheets[1]
 
-            $Worksheet.Tables[0].Name | Should Be 'Data'
-            $Worksheet.AutoFilterAddress | Should BeNullOrEmpty
-            $Worksheet.Column(5).Width | Should BeGreaterThan 9.5
+            $Script:Worksheet.Tables[0].Name | Should Be 'Data'
+            $Script:Worksheet.AutoFilterAddress | Should BeNullOrEmpty
         }
+        it "Allows to set TableName with AutoSize".PadRight(87) {
+            $Script:Worksheet.Column(5).Width | Should BeGreaterThan 9.5
+        } -skip:$notwindows
+
     }
 }
diff --git a/__tests__/ExtraLongCmd.tests.ps1 b/__tests__/ExtraLongCmd.tests.ps1
index 8a7d040..ecb8c17 100644
--- a/__tests__/ExtraLongCmd.tests.ps1
+++ b/__tests__/ExtraLongCmd.tests.ps1
@@ -1,6 +1,7 @@
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
 
 
-$path = "$Env:TEMP\test.xlsx"
+$path = Join-Path $Env:TEMP "test.xlsx"
 remove-item -path $path -ErrorAction SilentlyContinue
 ConvertFrom-Csv    @"
 Product, City, Gross, Net
diff --git a/__tests__/First10Races.tests.ps1 b/__tests__/First10Races.tests.ps1
index ca2d122..3eaa924 100644
--- a/__tests__/First10Races.tests.ps1
+++ b/__tests__/First10Races.tests.ps1
@@ -1,9 +1,11 @@
-$scriptPath = Split-Path -Path $MyInvocation.MyCommand.path -Parent
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+
+$scriptPath = Split-Path -Path $MyInvocation.MyCommand.path -Parent
 $dataPath = Join-Path  -Path $scriptPath -ChildPath "First10Races.csv"
 
 Describe "Creating small named ranges with hyperlinks" {
     BeforeAll {
-        $path = "$env:TEMP\Results.xlsx"
+        $path = Join-Path $Env:TEMP "results.xlsx"
         Remove-Item -Path $path -ErrorAction SilentlyContinue
         #Read race results, and group by race name : export 1 row to get headers, leaving enough rows aboce to put in a link for each race
         $results = Import-Csv -Path $dataPath |
diff --git a/__tests__/FunctionAlias.tests.ps1 b/__tests__/FunctionAlias.tests.ps1
index 9650d3f..02bd6e4 100644
--- a/__tests__/FunctionAlias.tests.ps1
+++ b/__tests__/FunctionAlias.tests.ps1
@@ -5,15 +5,15 @@ Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
 
 Describe "Check if Function aliases exist" {
 
-    It "Set-Column should exist" {
+    It "Set-Column should exist".PadRight(90) {
         ${Alias:Set-Column} | Should Not BeNullOrEmpty
     }
 
-    It "Set-Row should exist" {
+    It "Set-Row should exist".PadRight(90) {
           ${Alias:Set-Row} | Should Not BeNullOrEmpty
     }
 
-    It "Set-Format should exist" {
+    It "Set-Format should exist".PadRight(90) {
           ${Alias:Set-Format} | Should Not BeNullOrEmpty
     }
 
@@ -21,7 +21,7 @@ Describe "Check if Function aliases exist" {
         Get-Command Merge-MulipleSheets | Should Not Be $null
     }
 #>
-    It "New-ExcelChart should exist" {
+    It "New-ExcelChart should exist".PadRight(90) {
           ${Alias:New-ExcelChart} | Should Not BeNullOrEmpty
     }
 
diff --git a/__tests__/ImportExcelFileList.tests.ps1 b/__tests__/ImportExcelFileList.tests.ps1
index 89c50ba..3428b00 100644
--- a/__tests__/ImportExcelFileList.tests.ps1
+++ b/__tests__/ImportExcelFileList.tests.ps1
@@ -1,5 +1,5 @@
 Describe "ImportExcel File List" {
-    It "All files should exist" {
+    It "All files should exist".PadRight(90) {
         $fileList = Get-Content "$PSScriptRoot\..\filelist.txt"
 
         foreach ($file in $fileList) {
diff --git a/__tests__/ImportExcelTests/Simple.tests.ps1 b/__tests__/ImportExcelTests/Simple.tests.ps1
index a89a798..7248b07 100644
--- a/__tests__/ImportExcelTests/Simple.tests.ps1
+++ b/__tests__/ImportExcelTests/Simple.tests.ps1
@@ -8,20 +8,20 @@ Describe "Tests" {
         }
     }
 
-    It "Should have two items" {
+    It "Should have two items".PadRight(90) {
         $data.count | Should be 2
     }
 
-    It "Should have items a and b" {
+    It "Should have items a and b".PadRight(90) {
         $data[0].p1 | Should be "a"
         $data[1].p1 | Should be "b"
     }
 
-    It "Should read fast < 2100 milliseconds" {
+    It "Should read fast < 2100 milliseconds".PadRight(90) {
         $timer.TotalMilliseconds | should BeLessThan 2100
     }
 
-    It "Should read larger xlsx, 4k rows 1 col < 3000 milliseconds" {
+    It "Should read larger xlsx, 4k rows 1 col < 3000 milliseconds".PadRight(90) {
         $timer = Measure-Command {
             $null = Import-Excel $PSScriptRoot\LargerFile.xlsx
         }
@@ -29,7 +29,7 @@ Describe "Tests" {
         $timer.TotalMilliseconds | should BeLessThan 3000
     }
 
-    It "Should be able to open, read and close as seperate actions" {
+    It "Should be able to open, read and close as seperate actions".PadRight(90) {
         $timer = Measure-Command {
             $excel = Open-ExcelPackage $PSScriptRoot\Simple.xlsx
             $data = Import-Excel -ExcelPackage $excel
diff --git a/__tests__/InputItemParameter.tests.ps1 b/__tests__/InputItemParameter.tests.ps1
index 34983e6..4c02609 100644
--- a/__tests__/InputItemParameter.tests.ps1
+++ b/__tests__/InputItemParameter.tests.ps1
@@ -1,6 +1,8 @@
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+
 Describe "Exporting with -Inputobject" {
     BeforeAll {
-        $path = "$env:TEMP\Results.xlsx"
+        $path = Join-Path $Env:TEMP "results.xlsx"
         Remove-Item -Path $path -ErrorAction SilentlyContinue
         #Read race results, and group by race name : export 1 row to get headers, leaving enough rows aboce to put in a link for each race
         $results = ((Get-Process) + (Get-Process -id $PID)) | Select-Object -last  10 -Property Name, cpu, pm, handles, StartTime
diff --git a/__tests__/Join-Worksheet.tests.ps1 b/__tests__/Join-Worksheet.tests.ps1
index f0c24c0..c6b87b3 100644
--- a/__tests__/Join-Worksheet.tests.ps1
+++ b/__tests__/Join-Worksheet.tests.ps1
@@ -1,4 +1,7 @@
-$data1 = ConvertFrom-Csv -InputObject @"
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$notWindows =  ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' )
+
+$data1 = ConvertFrom-Csv -InputObject @"
 ID,Product,Quantity,Price,Total
 12001,Nails,37,3.99,147.63
 12002,Hammer,5,12.10,60.5
@@ -24,7 +27,7 @@ ID,Product,Quantity,Price,Total
 
 Describe "Join Worksheet part 1" {
     BeforeAll {
-        $path = "$Env:TEMP\test.xlsx"
+        $path = Join-Path $Env:TEMP "test.xlsx"
         Remove-Item -Path $path -ErrorAction SilentlyContinue
         $data1 | Export-Excel -Path $path -WorkSheetname Oxford
         $data2 | Export-Excel -Path $path -WorkSheetname Abingdon
@@ -89,10 +92,11 @@ Describe "Join Worksheet part 1" {
         }
     }
 }
-    $path = "$env:TEMP\Test.xlsx"
+    $path = Join-Path $Env:TEMP "Test.xlsx"
     Remove-item -Path $path -ErrorAction SilentlyContinue
 #switched to CIM objects so test runs on V6
 Describe "Join Worksheet part 2" {
+    if ($notWindows) {Write-warning -message "Test only runs on Windows" ; return}
     Get-CimInstance -ClassName win32_logicaldisk |
         Select-Object -Property DeviceId,VolumeName, Size,Freespace |
             Export-Excel -Path $path -WorkSheetname Volumes -NumberFormat "0,000"
diff --git a/__tests__/PasswordProtection.tests.ps1 b/__tests__/PasswordProtection.tests.ps1
index 93d0e11..ec4e6a6 100644
--- a/__tests__/PasswordProtection.tests.ps1
+++ b/__tests__/PasswordProtection.tests.ps1
@@ -1,9 +1,10 @@
-if ($PSVersionTable.PSVersion.Major -GT 5) {
-     Write-Warning "Can't test passwords on V6 and later"
-     return
-}
+
 
 Describe "Password Support" {
+    if ($PSVersionTable.PSVersion.Major -GT 5) {
+        Write-Warning "Can't test passwords on V6 and later"
+        return
+    }
     Context "Password protected sheet" {
         BeforeAll  {
             $password = "YouMustRememberThis"
diff --git a/__tests__/Path.tests.ps1 b/__tests__/Path.tests.ps1
index cfc24bf..6b449bd 100644
--- a/__tests__/Path.tests.ps1
+++ b/__tests__/Path.tests.ps1
@@ -1,38 +1,38 @@
 Describe "Test reading relative paths" {
     BeforeAll {
         $script:xlfileName = "TestR.xlsx"
-        @{data = 1 } | Export-Excel "$pwd\TestR.xlsx"
+        @{data = 1 } | Export-Excel (Join-Path $PWD  "TestR.xlsx")
     }
 
     AfterAll {
-        Remove-Item "$pwd\$($script:xlfileName)"
+        Remove-Item (Join-Path $PWD  "$($script:xlfileName)")
     }
 
-    It "Should read local file" {
+    It "Should read local file".PadRight(90) {
         $actual = Import-Excel -Path ".\$($script:xlfileName)"
         $actual | Should Not Be $null
         $actual.Count | Should Be 1
     }
 
-    It "Should read with pwd" {
-        $actual = Import-Excel -Path "$pwd\$($script:xlfileName)"
+    It "Should read with pwd".PadRight(90){
+        $actual = Import-Excel -Path (Join-Path $PWD  "$($script:xlfileName)")
         $actual | Should Not Be $null
     }
 
-    It "Should read with just a file name and resolve to cwd" {
+    It "Should read with just a file name and resolve to cwd".PadRight(90){
         $actual = Import-Excel -Path "$($script:xlfileName)"
         $actual | Should Not Be $null
     }
 
-    It "Should fail for not found" {
+    It "Should fail for not found".PadRight(90){
         { Import-Excel -Path "ExcelFileDoesNotExist.xlsx" } | Should Throw "'ExcelFileDoesNotExist.xlsx' file not found"
     }
 
-    It "Should fail for xls extension" {
+    It "Should fail for xls extension".PadRight(90){
         { Import-Excel -Path "ExcelFileDoesNotExist.xls" } | Should Throw "Import-Excel does not support reading this extension type .xls"
     }
 
-    It "Should fail for xlsxs extension" {
+    It "Should fail for xlsxs extension".PadRight(90){
         { Import-Excel -Path "ExcelFileDoesNotExist.xlsxs" } | Should Throw "Import-Excel does not support reading this extension type .xlsxs"
     }
 }
\ No newline at end of file
diff --git a/__tests__/ProtectWorksheet.tests.ps1 b/__tests__/ProtectWorksheet.tests.ps1
index ecdff4f..14c8f65 100644
--- a/__tests__/ProtectWorksheet.tests.ps1
+++ b/__tests__/ProtectWorksheet.tests.ps1
@@ -1,4 +1,6 @@
-$path = "$Env:TEMP\test.xlsx"
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+
+$path = Join-Path $Env:TEMP "test.xlsx"
 Remove-Item -path $path -ErrorAction SilentlyContinue
 $excel = ConvertFrom-Csv    @"
 Product, City, Gross, Net
diff --git a/__tests__/RangePassing.ps1 b/__tests__/RangePassing.ps1
index 1858215..c26f9d0 100644
--- a/__tests__/RangePassing.ps1
+++ b/__tests__/RangePassing.ps1
@@ -1,5 +1,10 @@
-$path = "$env:temp\test.xlsx"
+
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$notWindows =  ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' )
+
+$path = Join-Path $Env:TEMP "test.xlsx"
 describe "Consistent passing of ranges." {
+    if ($notWindows) {Write-warning -message "Test uses get-service so only works on Windows" ; return}
     Context "Conditional Formatting"  {
         Remove-Item -path $path  -ErrorAction SilentlyContinue
         $excel = Get-Service | Export-Excel -Path $path -WorksheetName Services -PassThru -AutoSize -DisplayPropertySet -AutoNameRange -Title "Services on $Env:COMPUTERNAME"
diff --git a/__tests__/Remove-WorkSheet.tests.ps1 b/__tests__/Remove-WorkSheet.tests.ps1
index bf39a13..9458619 100644
--- a/__tests__/Remove-WorkSheet.tests.ps1
+++ b/__tests__/Remove-WorkSheet.tests.ps1
@@ -1,5 +1,6 @@
 #Requires -Modules Pester
 Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
 
 Describe "Remove Worksheet" {
     Context "Remove a worksheet output" {
@@ -10,7 +11,7 @@ Name,Age
 Jane,10
 John,20
 "@
-            $xlFile1 = "$env:TEMP\RemoveWorsheet1.xlsx"
+            $xlFile1 = Join-Path $Env:TEMP "removeWorsheet1.xlsx"
             Remove-Item $xlFile1 -ErrorAction SilentlyContinue
 
             $data | Export-Excel -Path $xlFile1 -WorksheetName Target1
@@ -18,7 +19,7 @@ John,20
             $data | Export-Excel -Path $xlFile1 -WorksheetName Target3
             $data | Export-Excel -Path $xlFile1 -WorksheetName Sheet1
 
-            $xlFile2 = "$env:TEMP\RemoveWorsheet2.xlsx"
+            $xlFile2 = Join-Path $Env:TEMP "removeWorsheet2.xlsx"
             Remove-Item $xlFile2 -ErrorAction SilentlyContinue
 
             $data | Export-Excel -Path $xlFile2 -WorksheetName Target1
@@ -27,11 +28,11 @@ John,20
             $data | Export-Excel -Path $xlFile2 -WorksheetName Sheet1
         }
 
-        it "Should throw about the Path" {
+        it "Should throw about the Path".PadRight(87)  {
             {Remove-WorkSheet} | Should throw 'Remove-WorkSheet requires the and Excel file'
         }
 
-        it "Should delete Target2" {
+        it "Should delete Target2".PadRight(87)  {
             Remove-WorkSheet -Path $xlFile1 -WorksheetName Target2
 
             $actual = Get-ExcelSheetInfo -Path $xlFile1
@@ -42,7 +43,7 @@ John,20
             $actual[2].Name | Should Be "Sheet1"
         }
 
-        it "Should delete Sheet1" {
+        it "Should delete Sheet1".PadRight(87)  {
             Remove-WorkSheet -Path $xlFile1
 
             $actual = Get-ExcelSheetInfo -Path $xlFile1
@@ -53,7 +54,7 @@ John,20
             $actual[2].Name | Should Be "Target3"
         }
 
-        it "Should delete multiple sheets" {
+        it "Should delete multiple sheets".PadRight(87)  {
             Remove-WorkSheet -Path $xlFile1 -WorksheetName Target1, Sheet1
 
             $actual = Get-ExcelSheetInfo -Path $xlFile1
@@ -63,9 +64,9 @@ John,20
             $actual[1].Name | Should Be "Target3"
         }
 
-        it "Should delete sheet from multiple workbooks" {
+        it "Should delete sheet from multiple workbooks".PadRight(87)  {
 
-            Get-ChildItem "$env:TEMP\RemoveWorsheet*.xlsx" | Remove-WorkSheet
+            Get-ChildItem (Join-Path $Env:TEMP "removeWorsheet*.xlsx") | Remove-WorkSheet
 
             $actual = Get-ExcelSheetInfo -Path $xlFile1
 
diff --git a/__tests__/Set-Row_Set-Column-SetFormat.tests.ps1 b/__tests__/Set-Row_Set-Column-SetFormat.tests.ps1
index c0d35ef..b802895 100644
--- a/__tests__/Set-Row_Set-Column-SetFormat.tests.ps1
+++ b/__tests__/Set-Row_Set-Column-SetFormat.tests.ps1
@@ -1,5 +1,6 @@
-
-$path = "$Env:TEMP\test.xlsx"
+Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$path = Join-Path $Env:TEMP "test.xlsx"
 
 $data = ConvertFrom-Csv -InputObject @"
 ID,Product,Quantity,Price
@@ -299,7 +300,7 @@ Describe "Conditional Formatting" {
     }
 
 }
-$path = "$Env:TEMP\test.xlsx"
+$path = Join-Path $Env:TEMP "test.xlsx"
 $data2 = ConvertFrom-Csv -InputObject @"
 ID,Product,Quantity,Price,Total
 12001,Nails,37,3.99,147.63
@@ -320,7 +321,7 @@ ID,Product,Quantity,Price,Total
 
 Describe "AutoNameRange data with a single property name" {
     BeforeEach {
-        $xlfile = "$Env:TEMP\testNamedRange.xlsx"
+        $xlfile = Join-Path $Env:TEMP "testNamedRange.xlsx"
         Remove-Item $xlfile -ErrorAction SilentlyContinue
     }
 
diff --git a/__tests__/Validation.tests.ps1 b/__tests__/Validation.tests.ps1
index db1ec43..7c30e43 100644
--- a/__tests__/Validation.tests.ps1
+++ b/__tests__/Validation.tests.ps1
@@ -1,3 +1,7 @@
+Import-Module $PSScriptRoot\..\ImportExcel.psd1 -Force
+if (-not $env:TEMP) {$env:TEMP = [IO.Path]::GetTempPath() -replace "/$","" }
+$notWindows =  ($PSVersionTable.os -and $PSVersionTable.os -notMatch 'Windows' )
+
 $data = ConvertFrom-Csv -InputObject @"
 ID,Product,Quantity,Price
 12001,Nails,37,3.99
@@ -7,7 +11,7 @@ ID,Product,Quantity,Price
 12011,Crowbar,7,23.48
 "@
 
-$path = "$Env:TEMP\DataValidation.xlsx"
+$path = Join-Path $Env:TEMP "DataValidation.xlsx"
 
 Describe "Data validation and protection" {
     Context "Data Validation rules" {