Vol_89.7z.002 Today

: It contains the data that immediately follows the first part ( Vol_89.7z.001 ).

: Because it is a simple binary split, these parts can often be rejoined using standard file joiners or command-line tools (like copy /b in Windows or cat in Linux) even without 7-Zip installed. Core 7z Format Capabilities 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 : It contains the data that immediately follows