How to remove duplicate rows from excel
- Step 1Save your Excel sheet as CSV — In Excel, choose File → Save As and pick CSV (Comma delimited) as the format.
- Step 2Drop the CSV into the cleaner — Drag the file onto the dropzone. The whitespace trim and deduplicate options are on by default.
- Step 3Check the duplicates count — The results panel shows how many duplicate rows were removed. Adjust options and re-run if needed.
- Step 4Download the deduped CSV — Download the cleaned file and re-open it in Excel — the duplicate rows are gone.
Frequently asked questions
How is this different from Excel's Remove Duplicates?+
It trims whitespace before comparing rows so 'Acme Co' and 'Acme Co ' collapse to one row, and file contents stay local in your browser.
Does the order of my rows change?+
No. The first occurrence of each row is kept and subsequent duplicates are removed. Column order is preserved.
What counts as a duplicate row?+
Two rows are duplicates when every cell is identical after whitespace trimming. Partial duplicates (same in some columns only) are not removed.
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