Compare Two Excel / CSV Files
Detect new rows before importing into your system.
How to Compare Two Excel or CSV Files Online
Step 1: Upload Both Files
Upload your existing file and the new file you want to compare. Both Excel and CSV formats are supported.
Step 2: Select Columns
Enter the column names to use for comparison — such as customer code, invoice number or employee ID.
Step 3: Download New Records
Download only the new rows that exist in the new file but not in the existing file.
Why Compare Two Excel or CSV Files?
Comparing two excel or CSV files is a very time consuming and risky task and there is a heavy chance of doing mistakes during the comparision before uploading it to any systems like ERP or any accounting softwares. As such it is not possible for any people to compare two files manually when there are thousands of records. To overcome this problem, this tool is introduced in our website so that any user can compare correctly before uploading it to any systems without any effort.
Find New Records Before Import
Identify which rows are new in your updated file so you only import new records, not duplicates of what already exists.
Prevent Duplicate Imports
Avoid importing records that already exist in your ERP, CRM or database by comparing against your current export.
Compare by Specific Columns
Choose exactly which columns to use for comparison — customer code, email, invoice number, or any unique identifier.
Faster Than VLOOKUP
What takes hours using Excel VLOOKUP formulas is done in seconds with our comparison tool — no formula writing needed.
Works with Large Files
Compare files with thousands of rows instantly — no Excel formula lag or memory issues.
No Login Required
Upload both files, compare, and download results instantly. No account or signup needed.
Common Use Cases for Comparing Excel Files
- New Customer Import — Compare your CRM export with a new customer list to find only the customers that don't exist yet.
- New Invoice Upload — Compare last month's invoice file with this month's to find only the new invoices.
- Employee Onboarding — Compare existing employee records with a new HR export to find newly joined employees.
- Product Catalogue Update — Find new product codes added to an updated catalogue that aren't in your current ERP.
- Route Master Updates — Identify new delivery routes added to a logistics master file before uploading to your system.
- Vendor Master Sync — Find new vendors in an updated vendor list that haven't been added to your accounting software yet.
Frequently Asked Questions
What does the compare tool find?
The tool finds rows that exist in your new file but are missing from your existing file — based on the column(s) you select for comparison. It gives you only the new records.
Can I compare files using multiple columns?
Yes. Enter multiple column names separated by commas. The tool will treat the combination of those columns as the unique key for comparison.
What file formats are supported?
Both Excel (.xlsx) and CSV (.csv) files are supported. You can compare an Excel file against a CSV file or two files of the same format.
Is this different from using VLOOKUP in Excel?
Yes — much easier. VLOOKUP requires formulas, correct column references and manual filtering. Our tool does the same comparison automatically in seconds with no formula writing.
Are my files safe?
Yes. Both files are processed temporarily and deleted immediately after the comparison result is generated. We never store or access your file contents.