34 votes
FS File - What is an .fs file and how do I open it?
Learn about .FS files and view a list of programs that open them.
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What is an FS file? Source code file written in Microsoft's F# (pronounced "F Sharp") programming language, which is a variant of the ML language; can be written using the Visual F# component of Microsoft Visual Studio 2010; used for compiling F# code into .DLL or .EXE program executables.
More Information F# is designed for use with Microsoft's .NET library and tools. It was formally introduced with Microsoft's 2010 release of Visual Studio.
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Brotkrümel
DeveloperSA International
Popularity2.4 | 9 Votes
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.FS File Extension
3 file types use the .fs file extension.
Visual F# Source File
| Developer | Microsoft |
| Popularity |
3.9 | 34 Votes |
What is an FS file?
Source code file written in Microsoft's F# (pronounced "F Sharp") programming language, which is a variant of the ML language; can be written using the Visual F# component of Microsoft Visual Studio 2010; used for compiling F# code into .DLL or .EXE program executables.
More Information
F# is designed for use with Microsoft's .NET library and tools. It was formally introduced with Microsoft's 2010 release of Visual Studio.
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Programs that open or reference FS files
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Microsoft Visual Studio 2022
Free +
Category: Developer Files
Updated: July 7, 2010
Mac OS X File System Plug-in
| Developer | Apple |
| Popularity |
2.8 | 9 Votes |
Plugin that enables support for a certain file system in Mac OS X; allows the Mac operating system to recognize hard drives and other media formatted with different file systems.
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Examples of file system plugins include " hfs.fs ," " msdos.fs ," and " cd9660.fs ." Each FS file is saved as a Mac OS X bundle, but is defined as a plugin. They are stored by default in the "/System/Library/Filesystems" directory.
NOTE: FS files should not be opened manually since they are system files.
Programs that open or reference FS files
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Apple macOS
Included with OS
Category: Plugin Files
Updated: January 13, 2015
FlexiSIGN Document
| Developer | SA International |
| Popularity |
2.4 | 9 Votes |
Image file created by one of SAi's Flexi FAMILY software products; stores the text, graphics, dimensions, and plotting properties for a sign; used for printing banners and other signs on large-scale plotters and cutters; can be exported as a .PDF or .EPS file using the software.
More Information
Flexi FAMILY products include FlexiSIGN, FlexiSIGN-PRO, FlexiEXPERT, FlexiPRINT & CUT, FlexiLETTER, FlexiDESIGNER, FlexiENGRAVE, and FlexiENGRAVE-PRO.
Programs that open FS files
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SAi Flexi FAMILY
Free Trial
Mac
SAi Flexi FAMILY
Free Trial
Category: Vector Image Files
Updated: June 22, 2010