Here is how you can find solution by yourself:

  1. Start Excel
  2. Press Alt+F11 to start Microsoft Visual Basic
  3. Press F2 to start Object Browser
  4. Enter "SaveAs" in Search Text box and press Enter to search for this method
  5. Select any SaveAs method for class Workbook in the search results to get it params
  6. As you see it need FileFormat so enter this text in the Search Text box and press Enter
  7. Select XlFileFormat and get complete list of all avaiable formats

In reply to Re: Convert XLSX to XLS with OLE? by Gangabass
in thread Convert XLSX to XLS with OLE? by fish

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