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.PRJ File Extension

File Type 1	Project File (Most common)
File Format	File
Common?	No
File Description	Generic project file extension used by multiple programs; typically saves project data and settings and may include references to other files used by the project. The programs listed below are applications that save projects with ".prj" extensions and are not guaranteed to open all PRJ files; therefore, the following list of programs should serve as a reference of possible file associations for PRJ files.
Program(s) that open prj files	Mac: Freescale Semiconductor Codewarrior; Mackie Tracktion Windows: Microsoft Visual Basic; IDM UltraEdit; ESRI ArcGIS; Autodesk Visual LISP; Steinberg WaveLab; Mackie Tracktion; PlanetSquires FireFly Visual Designer; DataDirect Stylus Studio; Multi Edit Software Multi-Edit

File Type 2	AIMMS Project File
File Format	Proprietary File
Common?	No
File Description	AIMMS (Advanced Integrated Multidimensional Modeling Software) project file; contains information for developing operations models; includes project settings and user-interface components such as menus and end-user pages. An associated AIMMS model (.AMB) file is saved along with each project file.
Program(s) that open prj files	Windows / Unix: Paragon AIMMS or AIMMS Viewer

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