Files have a brown box on their icon and dont open in Windows 11

No 'Smart sync'

Have you tried unlinking one drive with file explorer and then relinking again? My Sync options appeared after that. (see Microsoft's guidance on syncing one drive troubleshooting for guidance about how to do this).

Thanks very much. I tried unlinking one drive then relinked it and those brown boxes were gone.

Excellent - glad to hear that was helpful, Frances. :-)

No 'Smart sync'

Thanks very much. I tried unlinking one drive then relinked it and those brown boxes were gone.

What is going on here? There is no information anywhere so it obviously isnt a problem for everyone.

Most of my files stored on Dropbox now have a small brown file box icon on the lower left corner of the main icon for all MS Office files. They open perfectly well on the phone and a laptop running Windows 10 but not on my laptop running Windows 11.

I get an error message saying the program cant open it because the file is unsupported or may be corrupt.

Why the **** do they release an OS that doesn't work with their own programs??

Please help,

Thanks

In case anyone is still grappling with this issue and it is not connected with Dropbox use, I found Microsoft's guidance about syncing one drive troubleshooting helpful. I didn't have any sync stat column in file explorer (windows 11) and had the brown box icon on all my files, so had no idea what to do. But when I unlinked my one drive with my computer and then relinked it, it solved all of this and I at last had a sync status column and could choose my usual options. Hope this is helpful for someone?