> For the complete documentation index, see [llms.txt](https://docs.editable.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editable.io/working-with-editable/table-operations-insert-update-delete/edit-data.md).
# Edit data
With EDITable, you can edit the contents of your source table. All changes you make are synced with the source in real time.
To overwrite any existing data, simply double-click on the cell and enter the new data. The value is updated, and the 'Changes' icon in the status bar displays the number of changes you made.
Overwriting data
In the toolbar, click **Save** to save the changes to the source, or **Discard** to undo the changes and return to the original value.
Save changes to source/Discard changes
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.editable.io/working-with-editable/table-operations-insert-update-delete/edit-data.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.