Excel - save clipboard image to jpg?

Question

I've got an several Excel reports which are generated on a monthly basis and I need to export a selected range as an image. I've managed to get as far as selecting the range and copying it to the clipboard, and pasting it into another application would work
but is it possible to save the image directly from the clipboard as a jpg file?
I've used the following code to do it looking at this link on poshcode:
http://poshcode.org/5184
$excel = New-Object -COM "Excel.Application" # Create new COM object
$excel.displayalerts = $false
$excel.visible = $true
$excel.usercontrol = $false # Disable user interaction with Excel
$Workbook=$excel.Workbooks.open($testfile) # Open XLS file in Excel
$Worksheet=$Workbook.Worksheets.Item(1)
$Worksheet.Activate() | Out-Null
add-type -an system.windows.forms
$rows = ($Worksheet.UsedRange.Rows.Count) # Get total used row count
$xRow = 1
$yRow = $rows
$rng = $Worksheet.range("b${xRow}:j${yRow}")
$pic = $rng.CopyPicture(2,1)
$e=[System.Windows.Forms.Clipboard]::GetDataObject()
$img = $e.GetImage()
$img.save($savefile)
It all runs and copies the selection to clipboard (pastes as image if you CTRL+V) but produces an error still on the last two lines. Cannot call a method on a null-valued expression.
Thanks in advance.

Answer 1

What about pasting it into Powerpoint and do SaveAs jpg?
Here is some vba code
' Initialize PowerPoint Object Library
Set PPApp = GetObject(, "Powerpoint.Application")
' Reference active presentation
Set PPPres = PPApp.ActivePresentation
PPPres.Slides(1).Shapes.Paste