When downloading Hollow Knight save files, be aware of the following precautions and risks:

A genuine 112% save file includes:

Hollow Knight 112% Save File Download: Skip the Grind and Face the Pantheon

Paste the renamed file into the Hollow Knight folder. Launch the game. You should now see the 112% save file in the corresponding slot.

Always copy your existing .dat files to a separate folder before replacing them. You don't want to accidentally lose your own progress!