Yes, Microsoft Office would be the best way to go.
You can get all the Office applications as part of a subscription for $100/Year for up to 5 PCs. So $20/year per PC and you have full Microsoft Office.
http://office.microsoft.com/en-us/
Would rather buy than subscribe? You can get Office Home & Student 2013 for $140.00 (street price less)
http://office.microsoft.com/en-us/home-and-student/
OK. Still not cheap enough.
You can use Microsoft Office for *FREE!* Yes Free!
http://windows.microsoft.com/en-US/skydrive/download
And store up to 7GB for FREE.
All of the above will synchronize with the cloud and allow you to access your files on PCs, tablets (Surface, iPad, Android), and SmartPhones (Windows Phone 8, iPhone and Android)
FReepers dont let FReepers support Google!
MIcrosoft is OK to support? Is there an official list of the politically correct and incorrect?
Or MS.