Compressed archive tied to the ASUS P8Z68-V desktop motherboard, with the name pointing to board revision 1.01. At 153 KB it is too small to hold a full BIOS image, so it most likely carries a boardview or similar service document rather than firmware; open it and check the contents before relying on it. Boardview files for ASUS desktop boards are usually in FZ format and open in viewers such as OpenBoardView. Confirm that the revision silkscreened on the PCB matches 1.01 before tracing rails or locating parts from it.
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 @boardview. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.