Switching platforms/Mac to PC/download steam cloud saves

[nBode]

I need to find a way to play my saved games on PC instead of Mac. I have Windows 7 installed via BootCamp and am playing Bioshock Infinite. I've almost beat the game but recently updated Mac OS and now it's unplayable due to lag. I downloaded the game on Steam for Windows, but my saved game is not there, even though it is supposed to be saved with Steam Cloud, right??

Can I download my saved game somehow to manually move over, or is there another way to get it to work. I don't want to have to start the whole game over. I don't have to to replay the whole thing.. Help....!

[KKiONI]

Found this post here that might help:
http://steamcommunity.com/app/8870/discussions/0/864977564029935932/#c558746745858159022

It seems you will need to do a bit more than copy over save files, but aside from that, the path of the save file is:
~/Application Support/Steam/userdata/xxxxxxx/8870/remote/savedata

Where ~ is your home directory and "xxxxxxx" is your user id (if you are the only one that logged into that machine, chances are that will be the only folder there).