Connect a cloud drive or online spreadsheet

What is supported

Source	What you choose	Notes
Google Sheets	One online spreadsheet	One channel per worksheet
Google Drive, Microsoft OneDrive, Dropbox	One Excel or CSV file in the drive	Re-pulled when the file changes
Airtable	One table inside a base
Notion	One database	Page bodies are not synced — only database properties

Data Connections → New Connection at the top right of a table, and pick the icon.
Connection Settings — clicking connect sends you to that service's login to authorise (Redirecting for Authentication...). You come back to TableDI with the connection created. The account you authorise has to be able to see the target file.
Channel Settings — walk down the folder tree that appears: Select Folder or File, with < Back to go up. Drive-type sources take only Excel or CSV; anything else is refused with Please select Excel or CSV. Google Sheets asks for the spreadsheet and then the worksheet; Airtable and Notion ask for the base and the table. The chosen file shows under Select Data File:, and Select a Different File changes it.
Date Selection → Data Binding — the same as any other connection.

The direction is cloud → TableDI. Edits you make here are not written back to the online spreadsheet. For that, see writing back to external systems.
The first row of the online sheet is the header, exactly as in Upload Excel and CSV. A merged banner row breaks it — ask whoever maintains the sheet to leave row one for headers.
Drive files are re-read in full each time. Fine for modest row counts; a file of tens of thousands of rows belongs in a database with a database connection instead.
When authorisation expires or is revoked the status becomes Not Connected. Re-run Connection Settings; the channel and the table stay as they are.
These services sign in overseas. On an unreliable connection the authorisation page may not load at all; try a different network.