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Got it running on 13.1 finally.
1. Install mono-complete
2. Install PlayonLinux
3. Start PlayonLinux, note; select 32 bit for everything [MS and Wine], 64 BIT DOES NOT WORK for this
4. Click the + [Install], at the bottom is 'Install a non-listed program'. click it then follow instructions. [32 bit virtual hd]
5. Go back to the first page of Playonlinux and select 'configure', be sure to create an shortcut [icon] for MobileSheets comp
6. Select wine version on middle of page and down load one, 32 bit only
7. On same page, move over to 'install components', scroll down to 'dotnet40', select and install

I may have missed something.
MobileSheets Companion loaded and connected to my nook. I'm assuming it will connect to my Asus tf700.
Good luck.