Mail merge from Excel to Word: without the wizard
Your list stays a spreadsheet. The merge stops being a desktop wrestling match.
The wizard, the broken link, the one PC
Word's built-in mail merge technically works, until the data source link breaks because the file moved, the columns shift and the fields land wrong, or you need to run it from a different computer and nothing comes along. It's a desktop ritual that has to be re-performed every time.
How Excel upload works
Upload .xlsx or .csv
Your columns become merge fields. Map them once: names, amounts, dates, addresses.
Types handled properly
Dates and currency format the way documents expect, per your format settings.
Stored in the cloud
The list and the template live in your account: re-run the merge from any computer, anytime.
Access: Uploaded spreadsheets are stored for your account only and deleted when you delete them or your account. Formula-style values are sanitized on import. Security details →
How it works
- 1
Upload your spreadsheet
Excel or CSV: the customer list you already keep.
- 2
Map the columns once
Tell MergeNinja which column is the name, the amount, the address.
- 3
Merge into your Word template
One personalized document per row, delivered to your inbox.
Documents people make with it
Frequently asked questions
Which file formats work?
Excel (.xlsx) and CSV. Your columns map to merge fields once, and the mapping is reusable.
What happens when my list changes?
Upload the new version: the template and column mapping stay put, so the next run is still one click. If the list lives in QuickBooks or Stripe, connect those instead and skip uploads entirely.
How is this better than Word’s built-in merge?
No data-source links to break, no wizard to re-run, and it works from any browser on any computer. See the full comparison on our MergeNinja vs Excel page.
Is my uploaded data safe?
It’s stored for your account only, formula injection is sanitized on import, and deleting the dataset or your account removes it. Details on the Security page.
Stop exporting. Start merging.
Connect your data, upload your Word template, and send every customer document in one click.
7 days free · no card to start