Updated readme and bumped version

Added resolve-path and tests. #627; Commented out write-warning

ImportExcel.psd1

@@ -4,7 +4,7 @@
     RootModule        = 'ImportExcel.psm1'
 
     # Version number of this module.
-    ModuleVersion     = '6.2.1'
+    ModuleVersion     = '6.2.2'
 
     # ID used to uniquely identify this module
     GUID              = '60dd4136-feff-401a-ba27-a84458c57ede'

ImportExcel.psm1

@@ -269,7 +269,6 @@ function Import-Excel {
         [Parameter(ParameterSetName = "PathA", Mandatory, ValueFromPipelineByPropertyName, ValueFromPipeline, Position = 0 )]
         [Parameter(ParameterSetName = "PathB", Mandatory, ValueFromPipelineByPropertyName, ValueFromPipeline, Position = 0 )]
         [Parameter(ParameterSetName = "PathC", Mandatory, ValueFromPipelineByPropertyName, ValueFromPipeline, Position = 0 )]
-        [ValidateScript( {(Test-Path -Path $_ -PathType Leaf) -and ($_ -match '.xls$|.xlsx$|.xlsm$')})]
         [String]$Path,
         [Parameter(ParameterSetName = "PackageA", Mandatory)]
         [Parameter(ParameterSetName = "PackageB", Mandatory)]
@@ -300,6 +299,7 @@ function Import-Excel {
     )
     begin {
         $sw = [System.Diagnostics.Stopwatch]::StartNew()
+
         Function Get-PropertyNames {
             <#
             .SYNOPSIS
@@ -346,6 +346,19 @@ function Import-Excel {
 
     process {
         if ($path) {
+            $extension = [System.IO.Path]::GetExtension($Path)
+            if ($extension -notmatch '.xlsx$|.xlsm$') {
+                throw "Import-Excel does not support reading this extension type $($extension)"
+            }
+
+            $resolvedPath = (Resolve-Path $Path -ErrorAction SilentlyContinue)
+            if ($resolvedPath) {
+                $Path = $resolvedPath.ProviderPath
+            }
+            else {
+                throw "'$($Path)' file not found"
+            }
+
             $stream = New-Object -TypeName System.IO.FileStream -ArgumentList $Path, 'Open', 'Read', 'ReadWrite'
             if ($Password) { $ExcelPackage = New-Object -TypeName OfficeOpenXml.ExcelPackage -ArgumentList $stream , $Password }
             else { $ExcelPackage = New-Object -TypeName OfficeOpenXml.ExcelPackage -ArgumentList $stream }
@@ -382,7 +395,7 @@ function Import-Excel {
             else {
                 $Columns = $StartColumn .. $EndColumn  ; if ($StartColumn -gt $EndColumn) { Write-Warning -Message "Selecting columns $StartColumn to $EndColumn might give odd results." }
                 if ($NoHeader) { $Rows = $StartRow..$EndRow ; if ($StartRow -gt $EndRow) { Write-Warning -Message "Selecting rows $StartRow to $EndRow might give odd results." } }
-                else {$Rows = (1 + $StartRow)..$EndRow ; if ($StartRow -ge $EndRow) {Write-Warning -Message "Selecting $StartRow as the header with data in $(1+$StartRow) to $EndRow might give odd results."}}
+                else { $Rows = (1 + $StartRow)..$EndRow } # ; if ($StartRow -ge $EndRow) { Write-Warning -Message "Selecting $StartRow as the header with data in $(1+$StartRow) to $EndRow might give odd results." } }
             }
             #endregion
             #region Create property names

README.md

@@ -53,6 +53,17 @@ Install-Module ImportExcel -scope CurrentUser
 Install-Module ImportExcel
 ```
 
+# What's new 6.2.1
+
+- Added requested feature, chart trendlines.
+    - [Example PowerShell script](https://github.com/dfinke/ImportExcel/blob/master/Examples/Charts/NumberOfVisitors.ps1)
+
+![](/images/ChartTrendlines.png)
+
+# What's new 6.2.2
+
+- Fixed Import-Excel and relative path issue, added unit tests.
+
 # What's new 6.2.0
 Thank you to [James O'Neill](https://github.com/jhoneill)
 

__tests__/Path.tests.ps1

@@ -0,0 +1,38 @@
+Describe "Test reading relative paths" {
+    BeforeAll {
+        $script:xlfileName = "TestR.xlsx"
+        @{data = 1 } | Export-Excel "$pwd\TestR.xlsx"
+    }
+
+    AfterAll {
+        Remove-Item "$pwd\$($script:xlfileName)"
+    }
+
+    It "Should read local file" {
+        $actual = Import-Excel -Path ".\$($script:xlfileName)"
+        $actual | Should Not Be $null
+        $actual.Count | Should Be 1
+    }
+
+    It "Should read with pwd" {
+        $actual = Import-Excel -Path "$pwd\$($script:xlfileName)"
+        $actual | Should Not Be $null
+    }
+
+    It "Should read with just a file name and resolve to cwd" {
+        $actual = Import-Excel -Path "$($script:xlfileName)"
+        $actual | Should Not Be $null
+    }
+
+    It "Should fail for not found" {
+        { Import-Excel -Path "ExcelFileDoesNotExist.xlsx" } | Should Throw "'ExcelFileDoesNotExist.xlsx' file not found"
+    }
+
+    It "Should fail for xls extension" {
+        { Import-Excel -Path "ExcelFileDoesNotExist.xls" } | Should Throw "Import-Excel does not support reading this extension type .xls"
+    }
+
+    It "Should fail for xlsxs extension" {
+        { Import-Excel -Path "ExcelFileDoesNotExist.xlsxs" } | Should Throw "Import-Excel does not support reading this extension type .xlsxs"
+    }
+}