FileInfo.com


.PL1 File Extension


File Type 1 3D Home Architect Floor Plan  (Most common)
File Format File
Common? No
File Description Building floor plan created with 3D Home Architect Deluxe; includes the first floor layout, as well as objects, such as furniture, lighting, appliances, and window treatments; may also include custom surface materials and colors.

NOTE: PL1 files are used to store the layout of the ground floor or first floor of a home; the second floor layout is stored in a .PL2 file.
Program(s) that open pl1 files Windows: Broderbund 3D Home Architect Deluxe

File Type 2 PL/I Source Code
File Format Standard File
Common? No
File Description Program written in PL/I (Programming Language One), a language designed primarily for data processing applications; supports recursion and structured programming; designed to be highly-structured, yet is also free-form, having no reserved keywords.

PL/I source files also use the .PLI extension.
Program(s) that open pl1 files Mac: PL/I for GCC
Windows: IBM PL/I for VSE/ESA; PL/I for GCC
Unix: PL/I for GCC

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/pl1