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The c# file extension is not showing on Windows. Since I’m a beginner I don’t know how to fix this. I already checked other files on the computer and the extensions appear normally, only the c# that is on it, so I think it’s a problem. Above highlighted with the red rectangle is how it should appear and below as it appears to me.
Probably Visualstudio is not installed properly and so the icon will not appear, try to install again and by the description in Type it seems that really has not been installed. The question lacks many details, can)
– Guilherme Nascimento