My rhino files look like adobe pdf files but extension in 3dm

Rhino Rhino for Windows
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Some of the rhino files look like adobe pdf files and I Cant open them. And ı dont know why ı don’t have the backups too. It really reall important can I fix?

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Hello- if you right-click on one of these and shoose Properties you should be able to reset the file association.

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-Pascal

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Hello- rhl files are not rhino files - they are lock files used to tell the system that the corresponding Rhino file is currently open in Rhino.

-Pascal

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hello these files were open before my computer stucked then ı closed and open and they get lost. is there any think else ı can do?
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