Article - CS293792

Error "The file type is not supported. Log file is located at C:\ProgramData\PTC\Mathcad Prime\Logs\Mathcad Prime_Exception_xxx_xxx.log" while opening or saving a worksheet in Mathcad Prime

Modified: 08-Aug-2025   


Applies To

  • Mathcad Prime 1.0 to 11.0

Description

  • Error: The file type is not supported. Log file is located at C:\ProgramData\PTC\Mathcad Prime\Logs\Mathcad Prime_Exception_xxx_xxx.log while opening worksheet
  • Example:
    • image.png
  • Log file includes a validation exception
  • Log file includes a System.FormatException
  • Log file includes a FileFormatException
  • Log file includes a System.IO.FileFormatException
  • Mathcad Prime worksheet is incompatible
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