Package for the Toshiba K450D laptop referring to Compal board LA-5831, stored as a RAR file of 1.93 MB. Compal uses the LA- prefix for its motherboard projects, and the full code with revision is printed on the PCB. The archive contents are not described, though schematic pages are the usual payload. Use them to trace rails from the DC jack through the charger, check the regulators feeding CPU and memory, and find a shorted line. Verify the board number matches yours first.
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.