Zipped boardview for a Dell board labelled LA-M41C revision 1.0, as the R10 suffix indicates; the LA- prefix is the style used by Compal for its laptop mainboards. The 218 KB archive holds the layout file, which a viewer like OpenBoardView or FlexBV opens to show component placement, net names and pin connections on both sides of the PCB. Use it to locate test points, follow a shorted rail to its source or identify a missing part, after checking that the revision on the board matches.
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.