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Document Editing Problems

How to Fix Word Mail Merge Showing Old Recipient Data on Mac

Maira MehtabMaira Mehtab Sep 28, 2026 868 views

Question details

The user needs to fix an issue in Microsoft Word for Mac where the mail merge preview continues to show outdated recipient information despite updating the attached Excel or CSV data source.

Product
Microsoft Word
Device & OS
macOS
Scenario
Updating an Excel or CSV data source linked to an active Word mail merge document.
Observed behavior
The mail merge preview displays old recipient data instead of refreshing to show the newly updated information from the source file.
Before you start

Ensure that your Excel or CSV data source file has been completely saved and closed before attempting to refresh the mail merge connection in Word.

Solution 1Recommended

Re-attach the Updated Data Source

Manually relinking the Excel or CSV file forces Word to drop its cached data and fetch the latest recipient list for your mail merge.

Microsoft Word on Mac often caches the linked data source for performance. If the source file was updated externally, Word might not automatically recognize the changes. Re-attaching the file refreshes the connection instantly.

1
Open the Word Document

Launch Microsoft Word on your Mac and open the active mail merge document that is displaying outdated information.

2
Access the Select Recipients Menu

Navigate to the 'Mailings' tab located on the top ribbon, click on the 'Select Recipients' button, and choose 'Use an Existing List'.

3
Link the Data Source

Locate and select your recently saved and updated Excel or CSV data source file to link it to the document once again.

4
Verify the Recipient List

Click on 'Edit Recipient List' under the Mailings tab to confirm that the newly updated records are successfully loaded into the preview.

Troubleshooting Persisting Issues: If the preview still fails to update, ensure that you are running the latest version of macOS and that your Microsoft Office suite is fully up to date.
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Use WPS Writer for Seamless Mail Merge on Mac

WPS Office provides a highly compatible and intuitive Mail Merge feature. You can effortlessly link spreadsheets to your document and generate bulk letters or labels without facing stubborn data caching issues.

  1. 1. Open your Document in WPS Writer: Launch WPS Office on your Mac and open your main document template.
  2. 2. Navigate to the Mail Merge Tool: Click on the 'References' or 'Mailings' tab at the top of the window and select 'Mail Merge'.
  3. 3. Attach Your Data Source: Click 'Open Data Source' and select your properly updated Excel or CSV file.
  4. 4. Insert Merge Fields: Click 'Insert Merge Field' to accurately place your dynamic recipient data into the document text.
  5. 5. Generate the Documents: Click 'Merge to New Document' to generate a fresh file populated with the latest recipient data.
Flawless compatibility with Microsoft Word (.docx) and Excel (.xlsx) formats.Intuitive and responsive Mail Merge wizard for generating bulk documents.Lightweight architecture that runs smoothly on both Mac and Windows.
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Frequently Asked Questions

Why does Word keep showing old mail merge data?

Word caches the linked data source for performance reasons. If you modify the source file while the Word document is still open or without refreshing the connection, Word may continue using the previously cached data instead of pulling the latest updates.

How do I refresh a mail merge list in Word for Mac?

To refresh the list, you need to navigate to the 'Mailings' tab, click on 'Select Recipients', choose 'Use an Existing List', and re-select your updated data source file to force a connection refresh.

What should I do if 'Edit Recipient List' is grayed out?

If 'Edit Recipient List' is grayed out, it indicates that no data source is currently attached to the document. You must click 'Select Recipients' to attach an Excel or CSV file first.

Can I use a CSV file instead of an Excel file for mail merge on a Mac?

Yes, both Microsoft Word and WPS Office fully support CSV files as data sources for mail merge. Just ensure the CSV file is properly formatted with clear column headers in the first row.