Can you create an android app like WPS Office that can open almost every kind of document as also create one.

Like I need a app that supports .docx , .xls , .pdf , and multiple similar format.

Like a merge between librera pro app and collabora and WPS Office with multiple font supports that WPS Office has.

A app that can do everything I mentioned would be great. Size can be huge(like above 500 MB is find too,Though still try to keep it below 1 GB.) but it should be able to open almost every kind of document and create it too on android device.