Archive for a Wistron design referenced as HOMA, with TM15 indicating a 15-inch model, plus the codes GW51 and 07245 given in the name. The five-digit number follows the style Wistron uses for its project and board numbering. Contents are not listed, so unpack the 2.44 MB RAR with 7-Zip or WinRAR to see whether a schematic or boardview is inside. Wistron is an ODM, so the laptop sold may carry another brand. Use the material to trace rails and find components, after matching the number on the PCB.
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 @alischematics. 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.