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F40 file extension

The table below provides useful information about the .f40 file extension. It answers questions such as:

  • What is the .f40 file?
  • What program do I need to open a .f40 file?
  • How can the .f40 file be opened, edited or printed?
  • How can I convert .f40 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ PDP-10 Fortran-4 Source Code

F40 file is a PDP-10 Fortran-4 Source Code. The PDP-10 is a mainframe computer family manufactured by Digital Equipment Corporation (DEC) from 1966 into the 1980s.
F40 format description not yet available
Application: PDP-10
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
F40 aliases:
F40 related links:
F40 related extensions:
PDP-10 Program Low Segment

PDP-10 Runoff Input Data

Other types of files may also use the .f40 file extension.

🚫 The .f40 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

f04, f4, f4p

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Nastran Log
Fortran IV Source Code
Adobe Flash MP4 Protected Media
HEC-RAS Flow File
Gigabyte BIOS Update

🔴 Can't open a .f40 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .f40 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .f40 file extension, write to us!

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