FS File - Visual F# Source File - What is an .fs file and how to open it?
What is an FS file?
The ".fs" file extension is associated with Visual F#, programming language developed by Microsoft as part of .NET framework. F# is functional-first programming language that is part of Microsoft .NET ecosystem, and it is designed to be used for variety of application types, including web, desktop and cloud applications.
Visual F# Source Files (with “.fs” extension) contain source code written in F# programming language. These files can include functions, modules, types and other F# language constructs. Visual Studio is common development environment for F# programming, providing tools for editing, compiling and debugging F# code.
Programmers use “.fs” files to write F# code and these files are then compiled into executable files (.EXE) or libraries, typically with .DLL extension. The F# language is known for its concise syntax, immutability by default and strong support for functional programming concepts.
How to open FS file?
Programs that open or reference FS files include
- Microsoft Visual Studio 2022 (Free) for Windows