Lenovo archive for board LA-9901P revision 1.0, with VILG1 G2 as the project code in the name. The LA- prefix follows Compal's board numbering, so Compal is the ODM behind this design. The name does not specify the files inside; such sets often contain a schematic and sometimes a boardview, used for following power rails, the power-on sequence and locating components. Verify the board number and revision on the PCB match before trusting voltages or part references.
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.