Boardview for Dell motherboard LA-J181P, a Compal-manufactured board, packed as a 456 KB ZIP without revision noted. Compal identifies its boards with the LA-xxxxP format, printed on the PCB. The file opens in boardview software such as OpenBoardView or FlexBV, revealing component placement, nets and test points, which makes locating a shorted part or a missing rail much quicker. Use it together with the matching schematic, and confirm the board number and revision on your PCB 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 @cynetitsolution. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.