The filename refers to the second volume of a multi-part compressed archive created with 7-Zip . Understanding This File Type
This indicates that this file is the second piece of the sequence. You will almost certainly need the first piece (ending in .7z.001 ) and any subsequent pieces (like .003 ) to open the content. 18ss20220505_014200.7z.002
The string 20220505_014200 likely indicates a timestamp (May 5, 2022, at 1:42:00 AM), which is common for automated backups or security footage exports. How to Open It The filename refers to the second volume of