> For the complete documentation index, see [llms.txt](https://docs.reach-book.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.reach-book.com/prospects/import-and-export-csv.md).

# Import and export CSV files

Open **Import / Export** in the sidebar. Click **Blank template** to download a CSV with the right columns.

![The Import / Export page with its four steps](https://965745608-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fdg7LyestsaNAIIzzILlv%2Fuploads%2Fgit-blob-dca2302160359239df857648c02ca48b114e9b25%2Fimport.webp?alt=media)

## Import

1. **Upload**: pick a CSV or TXT file up to 10 MB.
2. **Map columns**: common header names are matched for you. You must map either a **domain** or a **company** column. Rows with neither are skipped.
3. **Review**: check duplicates and choose what happens to rows that already exist:
   * **Skip them** (default)
   * **Update research fields**: fill in blanks and refresh notes
4. **Done**: see the import summary. You can add the new prospects straight to a draft campaign.

Optional: **Tag every imported prospect** and **Assign to** a teammate before you import.

### How duplicates are found

* Prospects are matched by email address.
* Without an email, they're matched by domain plus contact name.
* Duplicates inside the same file are merged.

### Time zones

Use names such as `Europe/Berlin` or `America/New_York`. Invalid time zones are flagged before import.

## Export

Click **Export all**. The export follows the filters you have on the prospect list and includes outcome, owner and dates.