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Mitz1's avatar
Mitz1
Explorer | Level 3
8 days ago

“Can't open the file because the file format/extension is not valid.” error on website/desktop app.

Hi, I’m having a serious issue with Dropbox where many of my files appear in the correct folders on both my computer and on Dropbox.com, but none of those specific files will open. I receive erro...
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Mitz1's avatar
Mitz1
Explorer | Level 3
7 days ago

 

Hannah's avatar
Hannah
Icon for Dropbox Community Moderator rankDropbox Community Moderator
7 days ago

Thanks for that, Mitz1. The app should be syncing as normal.

And it's definitely strange that you can't open the files online.

Have you tried restoring one of the files that gives you this error to an older version, to see if it opens then?

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