What is the DUP1 file format?
A file with the .DUP1 extension is a file known as Samsung Kies Duplicate Media. It belongs to the Misc Files category. This format is associated with Samsung Group.
The reliable way to open a .DUP1 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 .DUP1 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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