Excel Reconciliation Tool for Finance Teams
Drop two Excel files — see every missing transaction, amount mismatch, and added row. 100% in your browser.
File A (original)
Drop file or click to upload
Excel, CSV, or Google Sheets • max 5,000 rows
File B (updated)
Drop file or click to upload
Excel, CSV, or Google Sheets • max 5,000 rows
Month-end reconciliation shouldn't take hours
VLOOKUP breaks when rows are reordered. One reordered row and your formulas return #N/A. You start over. Every month.
You can't upload financial data to random websites. Most online diff tools upload your files to their servers. That's a compliance risk.
Spotting a $0.01 difference in 3,000 rows is nearly impossible. You miss a changed amount. The discrepancy shows up in audit.
How it works
Drop your source file and the file you're reconciling against.
Key column is auto-detected — matches rows even if reordered.
Every difference is highlighted. Export to Excel or Google Sheets.
Financial data stays on your device
All processing happens in your browser. No server, no upload. Safe for GL data, bank statements, and payroll files.
Common use cases
GL-to-bank reconciliation
Find missing transactions and amount differences before closing.
Intercompany reconciliation
Catch mismatches between entities before consolidation.
Vendor statement matching
Find every invoice discrepancy against your AP ledger.
Month-over-month variance
See which accounts moved and by how much.
Frequently asked questions
How do I reconcile two Excel files?
Drop both files into ChangeCheck. The key column (account number, transaction ID, etc.) is auto-detected and every difference is shown. No formulas needed.
Can it handle US and EU number formats?
Yes. Built-in normalization handles US (1,000.00), EU (1.000,00), Swedish (1 000,00), currency symbols, and accounting negatives like (500).
Is it safe for financial data?
Yes. Everything runs in your browser. Files are never uploaded. Check your network tab to verify.
Can I export the results?
Yes. Export to Excel or Google Sheets with summary, metadata, and every discrepancy.
ChangeCheck vs manual reconciliation
| ChangeCheck | VLOOKUP method | Online diff tools | |
|---|---|---|---|
| Handles reordered rows | Auto-matched by key | Breaks (#N/A) | Text-level only |
| Privacy | Nothing uploaded | Local (Excel) | Files uploaded to server |
| Number formats | US, EU, SE, currencies | Manual | No |
| Setup time | Under 30 seconds | 15–30 minutes | 5 minutes |
Close the books faster
No account needed. Drop two files and find every discrepancy.
Start reconciliation