MSI boardview for the MS-7C34 mainboard, revision 1.2, stored as a 2.04 MB .pcb file. The MS-7xxx prefix is the MSI numbering for desktop motherboards. A boardview shows component placement, net names and pin connections, so it is used to locate a capacitor on a shorted rail, find test points and follow a signal between chips. The .pcb format opens in tools like OpenBoardView or FlexBoardView. Confirm the revision printed near the PCIe slots matches 1.2 before relying on placements.
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 @ShareMan_Electronic_Files. Enginerys does not host this file.
How to open a .pcb file
In repair archives a .pcb is typically an XZZ (XinZhiZao) boardview — popular for phones and recent laptops.