File extension F77 (.F77) information

Windows cannot open F77 files?

If Windows is unable to open file extension .F77 you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

F77 is a file extension associated with FORTRAN 77 Program. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair F77 file extension association errors.


  • Performance: To optimize memory and CPU usage for F77 files run a free performance scan.
  • Stability: Fix F77 errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.