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.
Do you have the of this archive (like the .001 file) in the same folder? 18ss20220505_014200.7z.002
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
The software will automatically detect and join the other parts to recreate the original file. 18ss20220505_014200.7z.002