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We're sorry, we couldn't open your workbook. It's possibly corrupt or using a file format that's not supported.

  • May 22, 2025
  • 1 reply
  • 10 views

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Unable to open file due to the error message:

"We're sorry, we couldn't open your workbook. It's possibly corrupt or using a file format that's not supported."

1 reply

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I am having the same issue, did you ever get your issue resolved? Is there anyone from BOX that can help to recover these files?