The Merge Sequence # Field is not visible by default:

In order to delete the Merge Sequence # Field you will have to make it visible first.

Step 1:
Press Alt + F9:

Step 2:
Look for the MERGESEQ Field:

Step 3:
Delete it:

See also:

• Word, Mail Merge
• Word Merge Sequence # Rule ( Mail Merge)
• Microsoft Office Support, Field Codes: Next field

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