Sorry, but I don't know in this case.
You afraid of losing a license for Win Office 2010?
Maybe you try OpenOffice (with Russian location). if this will not work = you can change version or settings of Win Office. you can install OpenOffice with Win Office in one PC, this is not a problem. If this will not work just remove this soft.
I think this is the fastest way for resolving problem. If you used special symbols or macroses = this may be a trouble.
P.S. in my opinion = better full Win Office 2007 than base preinstalled Win Office 2010