Mkgardensh.7z.002

If you are writing about why this archive was created this way, focus on the "Solid" option in 7-Zip:

To extract the content, you must have all parts of the archive (e.g., MKGardenSh.7z.001 , MKGardenSh.7z.002 , etc.) in the same folder. MKGardenSh.7z.002

Better for long-term storage or archiving, though individual file extraction is slower. If you are writing about why this archive