Can't open file rhino

my file suddenly has an extension of 3dm.jyos instead of just .3dm, and i can’t open the file, also for all other formats, can anyone help me to fix this? thanks a lot
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Those four letters might mean something else too, but JYOS is the name of some ransomware, so unfortunately you may have a much more urgent problem

hope someone is an angel to help me restore it :frowning:

I on the other hand, hope you don’t have ransomware.

Someone who helps you needs physical access to your hardware. Go ask your organisation’s IT support team, or a local computer repair person, to make sure you have no malware or other viruses etc., and if so they might be able to get jyos removed.

Google .jyos file extensions and see for yourself

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