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glaydson
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Joined Apr 09, 2021
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Can't open any file deleted from OneDrive and recovered later
I changed the location of my OneDrive folder in my computer (Windows system), to a different hard drive, and after that I permanently removed the original folder. The problem is that the folder wasn't synchronized (I don't know why), and I lost the files that I updated/created in the last 45 days. I recovered the files using Windows recovery, but I can't open any one of them, in any format. There are spreadsheets, documents, pdf files, images and so on, and when I try to open any of them the error message is always similar: Invalid format or extension, or the file is corrupted. I can't believe that all files are corrupted, they've been deleted and recovered only an hour later, so I associate this problem with OneDrive or the files being treated as downloaded or attached files. I also tried to attach one of the files to this message, but I received the error: The attachment's pacman maze.xlsx content type (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) does not match its file extension and has been removed. I tried different solutions to open these files, without success, so I would appreciate any help.1.2KViews0likes1CommentRe: Excel cannot be open the file 'filename.xlsx' because the file format or file extension is not valid
NikolinoDE In my case, the same problem occured after I moved my One Drive folder to another disk, because the original location had no more space. After moving, the files in the new place became outdated, probably because local files were not synchronized with the cloud. I deleted the original One Drive folder, and the system asked for a complete deletion, because the folder was too big. After knowing that some of my spreadsheets were outdate, I recovered them using third party software, but Excel doesn't open them, the message is the same in this post. I've tried all solutions posted here, and also all solutions proposed by Microsoft, but I had no success. It's frustrating because I can see that the size of the recovered file is a little bigger than the outdated file, what is coherent. Also, the same problem occurs with all spreadsheets restored. I still think that this thing is related to One Drive. Finally, I tried to attach one of the files and received the error message: The attachment's caixa 2021.xlsx content type (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) does not match its file extension and has been removed.1.5MViews1like2Comments
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