Building foundation floor plan created with 3D Home Architect Deluxe, a home design program; stores the layout of the house's structural foundation; the actual ground floor layout is stored in a .PL1 file.
Program(s) that open pl0 files
Windows: Broderbund 3D Home Architect Deluxe
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/pl0
