When I try to open an Excel file from Box Drive, I get the message "The file format or file extension is invalid. Make sure the file is not corrupted and that the file extension and file format match" and I can't edit it.
I've updated Box Drive multiple times but the situation remains the same.
Is there a solution?
By the way, I can open the same Excel file from Box Tools, but it seems that opening it from BoxDrive is preferable.
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Hi 
Welcome to the Box Community!
To help narrow down the issue further, could you please assist me with the following:
- Is this happening for one user or multiple users?
- When did the issue begin? Did anything else change in your environment around that time?
- Does this occur on all machines the affected user tries to log into Drive on?
- What version is currently installed?
(Please refer to Installing and Updating Box Drive and Supported OS version for reference.) - Aside from updating Box Drive, have you already tried manually resetting Box Drive?
- Is this happening on all networks (home and work Wi-Fi, both on and off VPN)?
- Is this occurring with all files/file types?
(Please test with .docx, .xlsx, .pptx, .pdf, and .png.)
Also, here’s a related article about File Types Ignored or Blocked by Box Sync and Box Drive for your reference.
I look forward to your reply, and I appreciate your patience as we work to resolve this matter. 
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