To open and modify an Excel file in UT

[lool_lauris]

Hi Everybody,

I am looking for an app to open (and modify) a .xls file in Ubuntu Touch. I have installed Libre Office Calc through Libertine but the Calc GUI is not usable in a Nexus 4 (too small scren).
Before installing LO Calc, I've tried "Document Viewer" which is in OpenStore but if it's possible to open the file, no way to modify it.
Is there anyone with another solution ?
Thanks.

[poVoq]

Apparently OnlyOffice works fairly well on small screens. It's webbased, so in theory one could probably make a UT app for it based on their electron(?) based desktop app or alternatively connect to their cloud version with a mobile browser.