File Extension Database

Open PRJ File

The PRJ files have, up to now, two different applications, namely:

Project File

In this first case, the PRJ file acts as a generic project file extension used by multiple programs.

The PRJ normally saves the project data and settings and can include references to other files used by the project.

Open and operate a PRJ file, in the 'Project File' format

There are various applications that can save projects with a PRJ extension, however they are not guaranteed to open all PRJ files.

Therefore, the mentioned programs should serve as a reference for possible file associations for PRJ files, for example:

ESRI ArcGIS for Desktop: a complete desktop GIS software suite that allows the user to create maps, perform spatial analysis and manage data.

Autodesk AutoCAD: a commercial well-known computer-aided design and drafting software application.

Progress Stylus Studio: an integrated development environment for the Extensible Markup Language XHTML.

Autodesk 3ds Max: a professional 3D computer graphics software for making 3D animations and models, specially for games and images.

Microsoft Visual Basic: an event-driven programming language from Microsoft, in a third-generation, and known for its Component Object Model (COM) programming model and based, mainly, in Basic Language.

MathWorks MATLAB: a mathematical computing software with multiple functionalities, related to scientific and educational purposes calculation.

AIMMS Project File

In this case, the PRJ file is an AIMMS project file, which stands for Advanced Integrated Multidimensional Modeling Software.

The PRJ contains information for the development of operations models, including project settings and user interface components, such as menus and end-user pages.

An associated AIMMS model file, in AMB format, is saved along with each project file.

Software to open a PRJ file

Due to the great diversity of types of formats for the SMI extension, it is advisable to make sure, first, of the type of file you have in your hands, and then to have one of the following software packages:

How Can I Open PRJ File on Windows

We researched and learned that the best way to open PRJ file is to find a PRJ file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a PRJ file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open PRJ file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as PRJ file opener then try to search online for "PRJ viewer", "application to open PRJ file" or "open PRJ file" queries in the search engine you like.
Install the application you found and check if it can open PRJ file

How Can I Open PRJ File on Mac OS

We recommend to find a PRJ file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a PRJ file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with PRJ file.
If you know the Mac OS application which can work as PRJ file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open PRJ file in it.
If you don't know the application which can open PRJ file then try to search for "PRJ viewer", "application to open PRJ file" or "read PRJ file" queries in the online search engine you like.
Install the application you found and check if it can read PRJ file

How Can I Open PRJ File on Android

If you downloaded a PRJ file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded PRJ file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "PRJ".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "PRJ viewer", "PRJ file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open PRJ File on iPhone or iPad

To open PRJ File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the PRJ file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "PRJ". This way you can find apps which can open PRJ files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "PRJ viewer" or "PRJ file" online in your favorite search engine.

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