Transferring my Skyrim saved file from Xbox360 to Macbook.

Could I transfer my Skyrim saved file from Xbox 360 to Macbook? I heard that it's possible to do it on PC with Modio, but what about on Macbook? If I could transfer my Xbox 360 saved game file to my Macbook, then could I still install Skyrim mods on it?

I also want to apply this question to Oblivion saved game files. Also if I could transfer my Xbox 360 files to my Macbook and install mods, then could I transfer the files along with the mods from my Macbook to my PC, if I decided to buy a gaming PC in the future? Sorry for making the question more complicated. Please let me know. Thank you.