Archive of 22.5 MB for motherboard 6050A3059101-MB-A01, marked A1. The 6050A numbering pattern is used by Inventec and appears on boards for HP and other brands, with the MB A01 suffix naming the main board revision. The name does not say what is packed inside, so extract it to check for schematics, boardview or firmware. Use the material for tracing power rails and locating components, and confirm the full number on the PCB before relying on it.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ShareMan_Electronic_Files. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)