What is the $$S file format?
A file with the .$$S extension is a file known as OS/2 Spreadsheet. It belongs to the Spreadsheet Files category. This format is associated with IBM.
The reliable way to open a .$$S file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .$$S 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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