What is the DF4 file format?
A file with the .DF4 extension is a file known as Omnis7 And Omnis Studio Database. It belongs to the Database Files category. This format is associated with TigerLogic Corp. (Omnis Technology Corporation).
The reliable way to open a .DF4 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 .DF4 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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