> For the complete documentation index, see [llms.txt](https://help.recart.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.recart.com/sms/fix-an-a-b-test-xlsx-export-error.md).

# Fix an A/B Test XLSX Export Error

Use this guide to fix an error that occurs when downloading an XLSX export from a running A/B test so you can access your test results without interruption.

#### Table of Contents

* [What causes this error](#What-causes-this-error)
* [How to fix it](#How-to-fix-it)
* [Notes and best practices](#Notes)
* [What's next](#Whats-next)

#### What causes this error

If you see an error page when trying to export A/B test results as an XLSX file, the most likely cause is a special character in the test name — for example `+`, `&`, or `%`.

Special characters in the test name interfere with the export download. This is a known product limitation. Renaming the test to remove the special character resolves the issue immediately.

#### How to fix it

1. Go to **Popups** and open the **A/B Tests** tab
2. Open the affected test
3. Rename the test to remove any special characters. For example, replace `Summer + Fall` with `Summer and Fall`
4. Click **Save**
5. Retry the **XLSX export** — the file should now download successfully

#### Notes and best practices

* **Avoid:** Using special characters such as `+`, `&`, or `%` in A/B test names. These can cause export errors
* **Recommended:** Use plain words or hyphens instead (e.g., `Summer and Fall`, `Summer-Fall`)

#### What's next

Once you've renamed the test and confirmed the export works, you can continue reviewing your A/B test results. If the issue persists or you run into a different export problem, contact [Recart Support](https://help.recart.com).


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