Pretty sure membership starts from when you sign up so wait to use the other emails until this subscription expires.
I'm pretty sure you need to be online for it to work because it wasn't working last night when I was trying to open files. I'll call their IT dept today and report back
That would be a waste. It'd be the same thing as google drive just totally inconvenient.
2 years ago, I was at a college where they gave out all of microsofts products for free for one year. I got their programming, web design, and complete office packages for free. I even got a free operating system (that I ran on my Mac). It was an offline version that totaled around $3000 in product.