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All word and excel file extensions corrupted, any way to get them back?

Hello,

My coworker recently had her computer worked on by a supposed technical support. Now all of her documents, workbooks, and PDF's have been resaved with a wonky file extension I have never seen, and will not open anymore. They are all saved as "filename.docx.DXYMJOB"   We have no idea where the DXYMJOB came from, and nothing came up on a google search. I tried renaming a document, removing that extension and leaving it as just .docx, but it still won't open. 
Has anyone had this happen before? We tried doing a system restore to before this all changed, but it did not repair any of the documents. 

Thank you for your help,


Erin

System restore has no impact on data files

In explorer rt clicking a doc file,>Properties, does anything show under Previous versions tab?

Who or what was this Tech support?

Contributor since 2006
Currently win11 Pro & O365 Bus, multiple devices

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Question Info

Last updated April 1, 2024 Views 405 Applies to: