CompareSheets
by NARCISA IONELA BARBU
CompareSheets is an Excel add-in designed to compare excel files by unique identifiers.
CompareSheets is an advanced Microsoft Excel add-in that intelligently compares two worksheets using unique identifiers — going far beyond basic cell-by-cell comparison.
🔒 100% privacy – your Excel files never leave your computer.
All processing happens locally. No cloud storage.
It automatically detects and highlights in a single output:
- New rows and columns
- Updated values: Updated_OLD (values from the old file) and Updated_NEW (values from the new file)
- Deleted rows and columns
- Matching values
The CompareSheets add-in includes a built-in algorithm that automatically identifies unique key (identifier) columns.
You can optionally skip specific columns from being highlighted as changes (e.g., a timestamp column or other automatically generated values) without affecting the data copied from each file.
This makes it simple to track changes, reconcile records, and ensure data accuracy — all without leaving Excel.
Ideal for: Clinical Data Managers, Consultants, Supply Chain Teams, HR & Compliance Professionals, and Financial Analysts.
Free trial: 7 days, 100-row limit. No credit card required.
After the free trial, choose the plan that fits you best:
Individual
- Monthly: Full access.
- Annual: Full access + 2 months free.
- License for one device.
Teams
- Add or remove users anytime, with consolidated billing under one master account.
- Monthly: 20% off compared to Individual.
- Annual: 20% off + 2 months free.
- Minimum 2 seats.
Full functionality requires a paid subscription.
All current plans and pricing can be found on our Pricing page.
Interested? Learn more
Got a question? → Contact us
App capabilities
- Can read and make changes to your document
- Can send data over the Internet