: Recent updates (version 24H2) allow you to right-click and select Compress to or Extract without third-party software, though 7-Zip remains faster for large files. Common Uses for .7z Files
To see what is inside , you will need a tool capable of decompressing it: 1.nkh.7z
Select > Extract here (to unpack everything in the current folder) or Extract to "1.nkh/" (to put the contents into a new folder). : Recent updates (version 24H2) allow you to