The 7z format uses advanced LZMA/LZMA2 compression , which provides a significantly higher compression ratio than standard ZIP files.
To extract the content (likely a video, given the "vid" prefix), you must have all other related parts—such as .001 , .003 , etc.—in the same folder. vid114136.7z.002
If the original archive was protected, this part contains encrypted data that requires a password and the other parts of the set to decrypt. The 7z format uses advanced LZMA/LZMA2 compression ,