What Does Add Prefix and Suffix Mean in Excel?

Adding a prefix or suffix in Excel means inserting extra text before or after existing cell values. This is commonly required when formatting phone numbers, email addresses, employee IDs, invoice numbers and product codes.

Why Manual Editing Is Inefficient

Manually editing thousands of Excel rows is time-consuming and error-prone. Excel formulas such as CONCAT, TEXTJOIN or & operator confuse beginners and often break when data changes.

Bulk Column Processing Explained

This tool applies prefix or suffix changes to an entire selected column instantly, ensuring consistent formatting across all rows without modifying other columns.

Smart Duplicate Detection

The smart check option prevents duplicate text insertion. If a value already contains the selected prefix or suffix, it will not be added again.

Real-World Examples

Add +91 before Indian phone numbers
Add Mr or Ms before names
Append .com or .in to domain names
Add SKU prefix to product codes
Add year suffix like _2026

Works Without Excel Formulas

No formulas, no macros and no VBA scripts are required. The tool modifies raw cell values directly, making it ideal for non-technical users.

Supports XLS and XLSX Formats

Both older Excel (.xls) and modern (.xlsx) formats are fully supported, ensuring compatibility with Microsoft Excel, Google Sheets and LibreOffice.

Client-Side Data Processing

All Excel processing occurs locally inside your browser. Files are never uploaded, stored or transmitted to any server, ensuring complete privacy.

Who Uses This Tool?

Accountants
Digital marketers
HR departments
Students
Government job applicants

Frequently Asked Questions

Is add prefix suffix Excel tool free?
Yes, unlimited usage is completely free.

Are Excel files uploaded?
No, everything runs inside your browser.

Can I undo changes?
Your original file remains unchanged.

Does it work on mobile?
Yes, fully responsive on Android.

Add Prefix and Suffix in Excel Online