[MeowsePad]

I'm a big fan of Google Docs because it's free and can be updated from any device that has a web browser.

Office also has this capability. Maybe I'm just biased because I know how to make formulae work in excel.

Yeah, I figured that Office 365 had the capability as well. My former employer had Office 365 but switched to Google Docs. I find Google Docs to be more user-friendly personally. Office is a bit more feature-rich, but I guess that just comes down to whether or not you need the extra features.