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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

Nothing opens on this primary computer. Nothing! On computer 2 I can still open every file create before mid January,

  • Nancy's avatar
    Nancy
    Icon for Dropbox Community Moderator rankDropbox Community Moderator
    6 days ago

    Can you send me one more screenshot of what you see on the Dropbox website, when trying to open one of those files? 

    I’d also like you to right-click on one of your files on the desktop app next and send me a screenshot of the options you see. Do you see an option to make the file available offline, or online-only?

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