What is the 7-ZIP file format?
A file with the .7-ZIP extension is a file known as 7z Compressed Archive. This format is associated with Igor Pavlov.
The reliable way to open a .7-ZIP 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 .7-ZIP 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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