Hey all, If anyone can help me with my issue, this would be great. this issue is driving me crazy. I want to export some things to a predefined excel, overwriting some sheets. problem is: The openXMLExportExcel is not outputting with this error: Data.OpenXMLExportExcel operation failed. Common L…

Hi, It’s probably a library conflict with another add-in or Dynamo package. Try disabling the add-ins and retesting. If it fails again, try removing the Dynamo packages. Another workaround is to use Python with the OpenPyXL library. [image] Dynamo Version 3 Excel Export R…

OpenXML Export does not work: Data.OpenXMLExportExcel operation failed. Common Language Runtime detected an invalid program

Revit

EzDoesIt January 8, 2026, 4:14pm 5

I know Archi-lab is one

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OpenXML Export does not work: Data.OpenXMLExportExcel operation failed. Common Language Runtime detected an invalid program

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