Hey Alan, thanks for reaching out! To recover your old or deleted data, we recommend checking your version history:
From there, you should be able to copy your data from a previous version of your doc and paste it into the existing version. Please let us know if you run into any issues.
If you need the entire doc reverted back to a previous version, please have the doc owner follow these steps:
Share the doc with Coda Support
Provide the doc link here
Include the timestamp of the edit you would like to revert the doc to. As we may be in different timezones, please include a screenshot of the selected timestamp along with edits before and after.