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All my files have switched to an HTML extention and will not open

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  • Last reply by philipp

djdodd13
djdodd13
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At some point all my file (MS Office) extensions changed to .html and says Firefox html document, and the proper application will not open the appropriate file. I am moving to a new computer and need to save all my files and move them to the new computer. How do I get all my files back to the correct extension to open them?

At some point all my file (MS Office) extensions changed to .html and says Firefox html document, and the proper application will not open the appropriate file. I am moving to a new computer and need to save all my files and move them to the new computer. How do I get all my files back to the correct extension to open them?

All Replies (1)

philipp
philipp
  • Moderator
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hi djdodd13, this problem won't be related to firefox - it has no functionality to tamper with your office files, so we will likely not be set-up to help you with that issue. unfortunately changing file extensions are often a symptom of crypto-locker extortionware...