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FOR File Extension

The FOR file extension was created by Developer and is also known as the Fortran 77 Source File. FOR is classified as a Developer Files and You can open and render the contents of this file in a Text Editor. You can open FOR files in Intel Composer XE program.

Fortran 77 Source File Type

Fortran 77 Source File Type
Extension .for
Developer Not Available
Popularity 5.0 (10 Votes)
Mime Type text/plain
Default Program Intel Composer XE
Category Developer Files
Format Text
Updated 7/1/2025

What is a FOR File Type?

Free Online FOR Tools & Apps

Access powerful and secure free online FOR tools to convert, view, edit, merge, split, and compare FOR files — all without installing any software. Our tools support the .FOR (Fortran 77 Source File) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your FOR files directly from your device with ease.

FOR Files Common Issues

There are few common issues with the Fortran 77 Source File .FOR File Extensions while opening the .FOR files on Windows and MacOs, we have solution to those issues such as:

Can't Open FOR Files?

  1. You must have supported software programs installed for Fortran 77 Source File on your system such as Intel Composer XE.
  2. Associate default Intel Composer Xe Intel Composer XE program for *.for (Fortran 77 Source File) files.

    Associate FOR Default Program on Windows
    1. Right-click a *.FOR (e.g example.for) file and click Open With.
    2. In the Open with dialog box, click Intel Composer Xe Intel Composer XE program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .for files.

    Associate FOR Default Program on MacOs
    1. Click *.FOR (e.g example.for) file and click information -> Open With.
    2. In the programs list, click Intel Composer Xe Intel Composer XE program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .Intel Composer XE extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related FOR File Extensions

FOR default file extension is .FOR and other similer related extensions are:

All Platform Software Programs for FOR File Extension

List of all softwares that can open the FOR files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open FOR File on Windows

Software License Developer
Ubisoft Assassin's Creed image. Ubisoft Assassin's Creed 000 for Windows Paid Ubisoft Assassin's Creed

MacOs logo image - FileProInfo.comOpen FOR File on Mac OS

Software License Developer
MacroMates TextMate image. MacroMates TextMate 2 for MacOs Commercial MacroMates
Apple Xcode image. Apple Xcode 10 for MacOs Freeware Apple

Linux logo image - FileProInfo.comOpen FOR file on Linux

Software License Developer
Intel Composer XE image. Intel Composer XE 000 for Linux Free Trial Intel Composer XE

Website logo image - FileProInfo.comOpen FOR file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen FOR file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen FOR file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

FOR file extension icon image.About FOR - Fortran 77 Source File

FileProInfo is to help you understand about the Fortran 77 Source File with *.FOR suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for FOR. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for FOR, please let us know.

Updated 7/1/2025