What happened is that in an attempt to delete a field, I pressed command+delete.

Check your snapshots to see if you can restore from a recent auto-save point

This will make a new base based on whatever snapshot you select, but from the new base you can export the data as a CSV and then import it back into your real one.

Oh sweet! Thanks @Kamille_Parks . You just saved me days upon days of work!

Additionally, you can click on the little trash icon right next to the snapshot icon. That will let you restore recently-deleted records, without needing to export/import.

Although note that the trash can will only show you stuff that was deleted within the last 7 days, so the snapshots would be more helpful if you need to go back further than that. 

Hope this helps! If you’d like to hire an expert Airtable consultant to help you with anything Airtable-related, please feel free to contact me through my website: Airtable consultant — ScottWorld

Oh sweet!

Jeb, you marked your invocation as a solution, when you should mark Kamille’s reply instead