What is a .F77 file?
A .F77 file is a type of computer file that contains source code written in Fortran 77, which is a version of the Fortran programming language. Fortran 77, abbreviated as F77, was developed in 1977 and is particularly used for writing programs that perform scientific and numerical calculations. This version of Fortran introduced improvements such as structured programming and the ability to handle character-based data, which were not supported in earlier versions of the language.
The .F77 file extension specifically indicates that the code inside the file is written in Fortran 77, as opposed to other variants of Fortran. While it is common for developers to save Fortran code with .FOR or .F extensions, using .F77 makes it clear that the file specifically contains Fortran 77 code.
To use or modify the code in a .F77 file, you need a program that can read and understand Fortran 77 source code. You can open and edit .F77 files using various software programs, including: 1. **Microsoft Visual Studio Code** - A versatile and widely-used code editor that supports many programming languages, including Fortran 77, through extensions. 2. **GitHub Atom (Discontinued)** - Although this text editor was discontinued, it was capable of opening and editing .F77 files. 3. **Any Text Editor** - Basic text editors like Notepad on Windows or TextEdit on macOS can open .F77 files, allowing you to view and edit the code. However, they do not offer specialized features for Fortran programming. 4. **Chrome OS** - Devices running Chrome OS can open .F77 files directly in the text editor included with the operating system. 5. **Google Chrome Text** - This is a simple text editor extension for the Google Chrome browser that can also be used to view and edit .F77 files.
To compile and run the code contained in a .F77 file, you need a Fortran 77 compiler. This compiler translates the Fortran 77 code into a form that a computer can execute. The file itself is just a plain text file containing the written code, and it does not become an executable program until it is compiled.
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