It would be incredible if MS could publish Excel on Linux. What are the technical limitations preventing this?
I seem to remember about 30 years back MSFT produced something (Word? Excel? IE?) for Linux (or UNIX?). It died within six months or so.
Just porting all of the ODBC and COM/DCOM stuff would be a nightmare that even Microsoft is backing away from with the rise of Office365.
I think they would rather all those legacy input formats and data link tech died with windows but if they did decide to port it, you would end up with half of windows itself ported across to make it work and nobody is going to pay for that.
Office365 neatly bypasses all of it by not supporting all that old desktop style workflow and pushing OneDrive as your storage. My guess is even windows users will end up with web versions of office, since they already seem to treat the desktop stuff as a legacy setup.