How to add a Numbers document to iPad Pro

I have tried just about everything I can think of but can fin absolutely no information whatsoever on how to pass a document PeMANENTLY fro my iMac to my iPad Pro.

I will be working on this document then adding it to a folder at the end of the year and adding a new blank document (Bank Register).

Tks

p.s. I do not use iCloud for any reason