I see. These feel like super user problems? Except for the last one, which isn't a problem in many cases in that if it's that important, the user could have jus

I see. These feel like super user problems? Except for the last one, which isn't a problem in many cases in that if it's that important, the user could have just changed to Google Sheets. It appears that you have a pretty tough battle on your hands - you are straight up competing with Microsoft and Google, and an army of super users who probably have a large incentive not to change? You also have a network effect to overcome - even if you get users, they need to convince other users to use it at their org/whatever.