Can Excel compare two supplier files?
Yes, but formulas can become fragile when columns move or product identifiers are inconsistent. The review still needs business rules and an approval record.
Compare supplier spreadsheets
How to Compare Supplier Spreadsheets Without Missing Costly Changes
The goal is not merely to find differences between two spreadsheets. It is to find the differences that could change what a customer sees, what a team sells, or what the business earns.
Why this matters
Rows move, columns change names, and supplier files omit products. A basic spreadsheet comparison can show a difference without explaining whether it is safe.
A safer process
Turn the update into a clear decision.
- 1Match products using a stable SKU or other durable identifier.
- 2Normalize price, cost, units, and field names before comparison.
- 3Separate additions, removals, and changed values.
- 4Apply review rules to price, margin, completeness, and status changes.
- 5Save the decision with the source evidence.
Review checklist
Before you publish.
- Matching does not rely only on row number.
- New products are identified separately from changed products.
- Missing products are held instead of automatically deleted.
- Every critical change has a source row.
- The final export comes from an approved version.
Frequently asked questions
What should be compared first?
Start with SKU, cost, sell price, availability, and required product fields because these have the clearest commercial impact.
Check your own supplier file before anything changes.
Start with one CSV or Excel file. ProductCatalogs.ai shows the risky changes and keeps the current catalog protected until you approve.
Get my free report