Re: Microsoft does not care
I saved a trainee consultant from having to fork out for Office 365 just to make a simple change to a provided document by showing him LibreOffice.
I also found pre Office 365 Excel really crap for multiple spreadsheets (a significant pain for work) because it can't (reliably) show multiple at the same time (I have no idea this has been fixed in Office 365), but LibreOffice can and is much better at parsing delimited text files too! You can even get a usable port of LibreOffice for Android, which I found very useful with a BT mouse and BT keyboard.