When you run a mail merge in Word, the final output shows merged data from your source file — names, addresses, or other fields — combined with your main document. Without previewing, you risk printing letters that contain blank fields, incorrect data, or formatting errors that waste paper and time. Word provides built-in preview tools that let you check each merged record before sending the document to the printer. This article explains how to preview mail merge results step by step, how to navigate between records, and what to do when previewed data looks wrong.
Key Takeaways: Previewing Mail Merge Results Before Printing
- Mailings > Preview Results: Toggles the preview mode so you see actual data instead of field codes.
- Mailings > Preview Results > Next Record / Previous Record: Browse through individual merged records one at a time.
- Mailings > Preview Results > Find Recipient: Search for a specific record by name or other field value to verify its merged output.
What the Mail Merge Preview Feature Does
The mail merge preview feature replaces the field codes in your main document — such as <<FirstName>> and <<Address>> — with the actual data from your data source. This lets you see exactly how each letter, email, or envelope will appear when printed or sent.
Before you can preview, your mail merge must be fully set up. You need a main document with merged fields inserted and a connected data source such as an Excel spreadsheet, Outlook contacts list, or a Word table. The preview does not modify your data source or your main document. It only changes the display to show live merged content.
Word provides several navigation and search tools within the preview mode. You can move forward or backward through records, jump to a specific record number, or use the Find Recipient dialog to locate a record by a value in any field. These tools help you check a sample of records or verify a specific recipient before printing the entire batch.
Steps to Preview Mail Merge Results
- Open your mail merge main document
Open the Word document that contains your merged fields. This document must already have a data source attached. If you see field codes like<<Company>>instead of actual names, the merge is ready for preview. - Go to the Mailings tab
Click the Mailings tab on the ribbon. The tab contains the Preview Results group, which is located near the center of the ribbon, between the Write & Insert Fields group and the Finish group. - Click Preview Results
Click the Preview Results button in the Preview Results group. The button acts as a toggle. When you click it, Word replaces all merge field codes with the actual data from the first record in your data source. Click the button again to return to field code view. - Navigate between records
Use the Next Record and Previous Record buttons in the Preview Results group to move through records. The current record number is displayed in a text box between these buttons. You can type a record number directly into the text box and press Enter to jump to that record. - Search for a specific record
Click the Find Recipient button in the Preview Results group. In the Find Entry dialog, type a value you want to search for — for example, a last name or a city. Choose whether to search in the All fields option or a specific field. Click Find Next to locate the first matching record. The preview updates to show that record. - Check for blank or incorrect fields
As you preview each record, look for any field that displays blank space or incorrect data. A blank field usually means the data source is missing a value for that record. Incorrect data means the field mapping in your main document points to the wrong column in the data source. - Exit preview mode
To stop previewing, click the Preview Results button again. The document returns to showing field codes. You can then edit the main document or data source if needed.
If Preview Shows Blank or Wrong Data
Word shows blank fields for some records
A blank field in preview means the data source column for that field contains an empty cell for that record. Open your data source — for example, the Excel worksheet — and check the column that corresponds to the blank field. Fill in the missing value, save the data source, and return to Word. Click Preview Results again to refresh the display. If the field remains blank, click Mailings > Edit Recipient List and verify that the correct column is mapped to the merge field.
Word shows the same data for every record
If every record in preview shows the same name or address, the data source is not connected correctly. Click Mailings > Select Recipients and then Use an Existing List. Browse to your data source file and select it. Make sure the correct worksheet or table is selected in the Select Table dialog. After reconnecting, click Preview Results again.
Word shows field codes instead of data
If you see <<FirstName>> instead of actual names, the Preview Results button is not active. Click the Preview Results button in the Mailings tab to toggle the display. If the button is already highlighted but field codes still appear, press Alt+F9 on your keyboard. This keyboard shortcut toggles the display of field codes in the entire document. Press Alt+F9 again until you see the merged data.
Mail Merge Preview vs Print: Key Differences
| Item | Preview Results (screen) | Print Preview (Ctrl+F2) |
|---|---|---|
| Purpose | Check merged data content for each record | Check page layout, margins, and overall appearance before printing |
| Data shown | Actual merged data from the data source | Actual merged data from the data source |
| Navigation | Next Record, Previous Record, Find Recipient, record number box | Page up, page down, zoom, multiple pages view |
| Editing | Cannot edit document in preview mode | Cannot edit document in print preview mode |
| Best used for | Verifying data accuracy across multiple records | Checking final printed layout and page breaks |
Use Preview Results to confirm that every recipient has correct data. Then use Print Preview (Ctrl+F2) to verify that the layout, headers, footers, and page breaks look right before you send the merge to the printer.
Common Mistakes to Avoid When Previewing Mail Merge
Do not assume the first record represents all records. Always preview at least three records from different parts of your data source — for example, the first, middle, and last record. This catches data gaps that only appear in specific rows.
Do not edit the main document while preview is active. Word does not let you make changes in preview mode. If you find a formatting problem, click Preview Results to exit preview, make your edits, then re-enter preview to check the fix.
Do not forget to refresh the preview after editing the data source. Word does not automatically pull updated data from an Excel file that was changed while Word was open. After saving changes to your data source, click Mailings > Preview Results twice — off then on — to force a refresh.
By using the preview tools in Word, you can catch data errors, blank fields, and formatting problems before printing hundreds of documents. Preview a representative sample of records, use Find Recipient to check specific people, and always confirm that the data source is properly connected. This process saves paper, time, and the embarrassment of sending incorrect mail merge output.