Lenovo boardview, BV in the name, for Compal board LA-N211P with project codes JLG10 and ILYGA, supplied as a 195 KB ZIP. Once extracted, it loads in viewers such as OpenBoardView or FlexBV and shows every part, its designator, net connections and test points. Technicians use it to locate the component behind a short or to probe a rail quickly. The LA-xxxxP pattern is Compal's board numbering; verify it and the revision against the PCB before relying on the layout.
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 @cynetitsolution. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.