What is the TA9 file format?
A file with the .TA9 extension is a file known as TaxACT Tax Document. It belongs to the Misc Files category. This format is associated with 2nd Story Software.
The reliable way to open a .TA9 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 .TA9 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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