Hi,
We’ve created our own Seafile instance on our hosted server.
I was looking to test for online collaborating.
I tried my existing .xlsx and also created a new via the seafile page, but it cannot open online viewer: Online view is not applicable to this file format
Any idea what’s wrong? Or is there no support for MS Excel files?
Also this option is missing in Apple App, is that right?
Hope you can give me the right direction 
Regards Marco