There is only one file type that uses the .PC7 extension:
PowerCADD 7 Drawing File
CAD drawing created with PowerCADD 7, a Macintosh-only architecture and design program; may contain building designs and layouts, machinery designs, or 2D drawings.
NOTE: PowerCADD may not add the ".pc7" file extension by default, but it may be added by the user.
|Engineered Software PowerCADD 7|
Updated: May 29, 2007