excel - Powershell 批量导出/将 Excel 转换为 TXT (unicode)

Question

目标是将目录(带有子文件夹)中的所有 xls 文件转换为 txt(unicode)，将 txt 保存在与原始 xls 文件相同名称的相同位置。
我有这样的，不工作:

$files = Get-ChildItem D:\test\*.xls -recurse
Write "Loading Files..."

$Excel = New-Object -ComObject Excel.Application
$Excel.visible = $false
$Excel.DisplayAlerts = $false

ForEach ($file in $files)
{
     $WorkBook = $Excel.Workbooks.Open($file.Fullname)
     $NewFilepath = $file.Fullname -replace ".{4}$"
     $NewFilepath =  $NewFilepath + ".txt"
     $Workbook.SaveAs($NewFilepath,42)   
}
  Stop-Process -processname EXCEL
  $Excel.Quit()

它给出了异常(exception):

No access to 'FileName.txt'.
At line:13 char:6
+      $Workbook.SaveAs($NewFilepath,42)
+      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], COMException
    + FullyQualifiedErrorId : System.Runtime.InteropServices.COMException

Answer 1

我认为这与您在退出 Excel 进程之前终止它的方式有关。
试试这个方法:

$files = Get-ChildItem D:\test\*.xls -recurse

$Excel = New-Object -ComObject Excel.Application
$Excel.visible = $false
$Excel.DisplayAlerts = $false

ForEach ($file in $files) {
     Write "Loading File '$($file.Name)'..."
     $WorkBook = $Excel.Workbooks.Open($file.Fullname)
     $NewFilePath = [System.IO.Path]::ChangeExtension($file.Fullname,".txt")
     $Workbook.SaveAs($NewFilepath, 42)   # xlUnicodeText
}

# cleanup
$Excel.Quit()
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($WorkBook) | Out-Null
[System.Runtime.Interopservices.Marshal]::ReleaseComObject($Excel) | Out-Null
[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()

如您所见，我还更改了创建新文件名的方法，使用 [System.IO.Path]::ChangeExtension()方法。如果在某一时刻您必须处理 .xlsx，这将更容易。文件。

此外，始终 发布 ComObjects 使用后(底部的四行会处理)