: This specific file contains a portion of the data from the original "Cousins1" folder or file. It cannot be opened or extracted on its own; it requires the first volume (Cousins1.7z.001) to begin the extraction process.
The file is the second part of a multi-volume compressed archive created using the 7-Zip software . Large files are often split into smaller numbered segments (e.g., .001, .002, .003) to make them easier to transfer via email or upload to cloud storage. File Characteristics Format Type : 7z (7-Zip) compressed archive segment.
: Typically uses LZMA or LZMA2 algorithms, which offer high compression ratios compared to standard ZIP files. How to Access the Contents Does 7z compress better than zip? - Microsoft Community Hub