Small RAR archive of about 775 KB for a Sony laptop built on the Quanta RJ9 board. The name gives neither a VAIO model nor a revision, so contents and exact applicability are unclear; Quanta packages of this size usually contain a schematic. Such a document is used to trace voltage rails, locate components and test points and follow signals around the EC and power controllers. Extract it with 7-Zip or WinRAR, then compare the RJ9 code and revision printed on the motherboard with the document before making repair decisions.
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 @generalschematics. 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.