Vol_89.7z.002

: This file cannot be opened or extracted on its own. You must have all related parts (e.g., .001, .002, .003) in the same folder to reconstruct the original data.

: Unlike RAR volumes, these ".00x" files are typically raw splits. They do not contain their own individual archive headers; instead, they function as a single continuous file that has been mathematically sliced into pieces. Vol_89.7z.002

7z code is a part of 7-Zip program distributed under the GNU LGPL. You can download 7-Zip sources and binaries from Download Page. 7Z file extension - PeaZip : This file cannot be opened or extracted on its own