What is the WS1 file format?
A file with the .WS1 extension is a file known as WordStar For Windows 1 Document. This format is associated with Michael Petrie.
The reliable way to open a .WS1 file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .WS1 files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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