iCloud Drive

How

1. Save a file to iCloud Drive on the Mac
2. Open the Files app on the iPad
3. Tap iCloud Drive
4. Find the file
5. Open or edit it on the iPad

Try this

Save a text file to iCloud Drive on your Mac, then open and edit it in Files on the iPad.

Why it works

Use iCloud Drive to access the same files on Mac and iPad.

Save once, open anywhere.