Files that contain the .win file extension are most commonly used for Windows system backup files. These files contain backup copies of the Windows files on a user's computer.
If the original Windows files that are locate on a user's computer happen to become corrupt or are accidentally deleted, the WIN files can be used to restore the data on the user's system.
The Truevision Targa software has also been known to use the .win file suffix. These files contain bitmap image files that are used by the Truevision Targa application.
The ArchiCAD software also uses the .win file extension. These WIN files contain geometric description language files that are used by the ArchiCAD application.
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If you have additional information about the WIN file format or software that uses files with the WIN suffix, please do get in touch - we would love hearing from you.