
Now, this doesn't mean there are not viable alternatives. The reason is farily simple: MS office is being developed for a few decades now, with big teams of developers, and to replicate absolutely everything you would need the same amount of "programming hours" which ultimately translates to number of hours worked timex number of programmers. If that is "absolute" (as in do precisely the same thing, precisely the same way, always) then it's a not. "Without any loss of functionality" is the key here.

Is there an Office alternative that will still work - without any loss of functionality - without an Internet connection? The real question seems to be: with 365 being so heavily pushed, will there be a version of Office in the future that will run off-line, not require a subscription (can be purchased outright) and does not present the possibility of being switched to reduced functionality mode when traveling to areas where The Internet may not be available or deemed too much of a risk to use (wireless at a hotel,etc.) We do currently heavily use MS Office 2013 - and would soon notice the loss of functionality. A few more stipulate the cloud cannot be used under any circumstances.

For at least two clients, putting data over the Internet is an actual breach of contract. I have a number of clients who require compliance with some fairly stringent STIGs (Security Technical Implementation Guides).

I am looking for an Office suite that can work with MS Office files that does not require an Internet connection for installation or cloud access.
