Displays or modifies file extension associations ASSOC .ext[=[fileType .ext Specifies the file extension to associate the ...

Displays or modifies file extension associations    ASSOC [.ext[=[fileType]]]      .ext      Specifies the file extension to associate the file type with    fileType  Specifies the file type to associate with the file extension    Type ASSOC without parameters to display the current file associations.  If ASSOC is invoked with just a file extension, it displays the current  file association for that file extension.  Specify nothing for the file  type and the command will delete the association for the file extension.
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