Fix to parameter set detection in Export-Excel

Parameter set problem was causing  append to demand a table name.
Tweaked eample in join worksheet, added another join worksheet sample

Examples/Join-Worksheet/Join-worksheet-blocks.sample.ps1

@@ -0,0 +1,11 @@
+
+$path = "$env:TEMP\Test.xlsx"
+Remove-item -Path $path -ErrorAction SilentlyContinue
+ Get-WmiObject -Class win32_logicaldisk |
+    Select-Object -Property DeviceId,VolumeName, Size,Freespace | 
+        Export-Excel -Path $path -WorkSheetname Volumes -NumberFormat "0,000"
+Get-NetAdapter  | 
+    Select-Object -Property Name,InterfaceDescription,MacAddress,LinkSpeed | 
+        Export-Excel -Path $path -WorkSheetname NetAdapters
+
+Join-Worksheet -Path $path -HideSource -WorkSheetName Summary -NoHeader -LabelBlocks  -AutoSize -Title "Summary" -TitleBold -TitleSize 22 -show  

Export-Excel.ps1

@@ -390,8 +390,8 @@
                 elseif ($_[0] -notmatch '[a-z]') { throw 'Tablename starts with an invalid character.'  }
                 else { $true }
             })]
-        [Parameter(ParameterSetName = 'Table'        , Mandatory = $true)]
-        [Parameter(ParameterSetName = 'PackageTable' , Mandatory = $true)]
+        [Parameter(ParameterSetName = 'Table'        , Mandatory = $true, ValueFromPipelineByPropertyName)]
+        [Parameter(ParameterSetName = 'PackageTable' , Mandatory = $true, ValueFromPipelineByPropertyName)]
         [String]$TableName,
         [Parameter(ParameterSetName = 'Table')]
         [Parameter(ParameterSetName = 'PackageTable')]

Join-Worksheet.ps1

@@ -24,10 +24,10 @@
 
       .EXAMPLE
         Get-WmiObject -Class win32_logicaldisk | select -Property DeviceId,VolumeName, Size,Freespace | 
-           Export-Excel -Path "$env:computerName.xlsx" -WorkSheetname Volumes 
+           Export-Excel -Path "$env:computerName.xlsx" -WorkSheetname Volumes -NumberFormat "0,000"
         Get-NetAdapter  | Select-Object Name,InterfaceDescription,MacAddress,LinkSpeed | 
             Export-Excel -Path "$env:COMPUTERNAME.xlsx" -WorkSheetname NetAdapter
-        Join-Worksheet -Path "$env:COMPUTERNAME.xlsx"  -WorkSheetName Summay -Title "Summary" -TitleBold -TitleSize 22 -NoHeader -LabelBlocks -AutoSize -HideSource
+        Join-Worksheet -Path "$env:COMPUTERNAME.xlsx"  -WorkSheetName Summary -Title "Summary" -TitleBold -TitleSize 22 -NoHeader -LabelBlocks -AutoSize -HideSource -show
 
         The first two command get logical disk and network card information; each type is exported to its own sheet in a workbook. 
         The Join-worksheet command copies both onto a page named "Summary". Because the data is disimilar -NoHeader is specified, ensuring the whole of each page is copied. 

README.md

@@ -31,14 +31,15 @@ To install to your personal modules folder (e.g. ~\Documents\WindowsPowerShell\M
 iex (new-object System.Net.WebClient).DownloadString('https://raw.github.com/dfinke/ImportExcel/master/Install.ps1')
 ```
 
-# What's new to 6th July 18
+# What's new to 7th July 18
 - Moved chart creatation into its own function (Add-Excel chart) within Export-Excel.ps1. Renamed New-Excelchart to New-ExcelChartDefinition to make it clearer that it is not making anything in the workbook (but for compatiblity put an alias of New-ExcelChart in so existing code does not break). Found that -Header does nothing, so it isn't Add-Excel chart and there is a message that does nothing in New-ExcelChartDefinition .  
 - Added paramters for managing Axes and legend (these are currently in Add-ExcelChart but not new-ExcelChartDefinition) 
 - Fixed a bug introduced into Compare-Worksheet by the change descibed in the June changes below, this meant the font color was only being set in one sheet, when a row was changed. Also found that the PowerShell ISE and shell return Compare-Object resuls in different sequences which broke some tests. Applied a sort to ensure things are in a predictable order.  (#375)
 - Fixed some bad code which had been checked-in in-error and caused adding charts to break. (This was not seen outside Github #377)  
 - Added chart tests to Export-Excel.tests.ps1. 
 - Removed (2) calls to Get-ExcelColumnName
-- Fixed an issue in Export-Excel where formulas were inserted as strings if "NoNumberConversion" is applied (#374), and made sure formatting is applied to formula cells 
+- Fixed an issue in Export-Excel where formulas were inserted as strings if "NoNumberConversion" is applied (#374), and made sure formatting is applied to formula cells
+- Fixed an issue with parameter sets in Export-Excel not being determined correctly in some case (I think this has been resolved before and might have regressed) 
 - Reverted the [double]::tryParse in export excel to the previous way, as the shorter way was not behaving correctly with with the number formats in certain regions. (also #374)
 - Changed Table, Range and AutoRangeNames to apply to whole data area if no data has been inserted OR to inserted data only if it has.(#376) This means that if there are multiple inserts only inserted data is touched, rather than going as far down and/or right as the furthest used cell. Added a test for this.
 - Added more of the Parameters from Export-Excel to Join-worksheet, join just calls export with these parameters so there is no code behind them (#383)