Totally agree with this ! The first front-end to implement a simpler way to paste spreadsheets in will be onto a winner.

Quite how to do that without importing a whole bunch of formatting and potentially even cookies is something I don't know. My spreadsheet software of choice right now is Excel, but I'm looking to start tinkering with Office Libre or OpenOffice when I've got some time, as part of a process to de-Google and de-Microsoft my life (or more realistically, to at least minimise their data scraping opportunities).