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Asked: 2026-05-18T00:03:55+00:00

I want to automate Excel using Perl to do the following task(s): For a

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I want to automate Excel using Perl to do the following task(s):

For a list of Excel .xls files, do the following:
  Open the file
  Set Format to CSV
  Save the file under the original filename and directory, but replace the extension "xls" with "csv"
  Close the file
End

I found how to open files, even how to save them. I did not find how to change the fileformat/save as a different format. There shall be no user dialogs popping up, it should be fully automated. The Excel file list I can generate myself, a parameterized “find” or maybe “dir” should suffice.

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  1. Editorial Team

    If you are using Excel automation a great help is Excel itself. Use the VBA environment (Alt+F11) to get help for the Excel objects you want to use.

    The objectbrowser (F2) is very valuable. 

    Workbook.SaveAs([Filename], [FileFormat], [Password], [WriteResPassword], [ReadOnlyRecommended], [CreateBackup], [AccessMode As XlSaveAsAccessMode = xlNoChange], [ConflictResolution], [AddToMru], [TextCodepage], [TextVisualLayout], [Local])

    Searching for CSV in the object browser will show Excel constants with their values, since you probably cannot use these Excel constants in Perl.

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