Clone From FileAssociation.Rebuild support net6.0 and net48.
NuGet: https://www.nuget.org/packages/FileAssociation2
Original author source code:
https://bitbucket-archive.softwareheritage.org/projects/rv/rvesse/fileassociation-nuget.html
https://www.codeproject.com/Articles/17023/System-File-Association