I'm not relying on anything in particular my current versions of Excel and Word. I'm just sticking with them through sheer inertia.
By default they don't allow macros (or editing/saving) documents downloaded from the Internet, which means I have to enable editing on documents I download. The few times a year I get a document from an untrusted source and don't want to open it on my computer, I open it with Google Docs.
If I'm ever forced to upgrade, I'll likely go with LibreOffice. But so far it ain't broke.
By default they don't allow macros (or editing/saving) documents downloaded from the Internet, which means I have to enable editing on documents I download. The few times a year I get a document from an untrusted source and don't want to open it on my computer, I open it with Google Docs.
If I'm ever forced to upgrade, I'll likely go with LibreOffice. But so far it ain't broke.