Can I compare only some columns?

Yes — for example only the e-mail column, so the same customer with a different spelling of their name is still caught.

Can I edit the result before downloading?

Yes. The file opens in Mega Excel Studio, a full spreadsheet with an AI assistant — change anything, then download.

Is it safe to convert CSV or Excel to a clean table here?

Yes. Your file travels over an encrypted connection and stays private to you — nobody else can open it. Projects you save are kept in your account until you delete them, and download links we email you expire after 7 days.

Excel Tools

Remove Duplicate Rows

Find and remove repeated rows in a CSV or Excel file. It opens in Mega Excel Studio, so you can check and change anything before you download.

Drop a CSV or Excel file

or browse from your device — .csv, .xlsx, .xls, .ods

Private & secure· Check before you download· No watermark

Convert CSV or Excel to a clean table online, the right way

Duplicate rows inflate totals, double-mail customers and break imports. Drop your file, choose the options that matter, and it opens in Mega Excel Studio with the export window ready. The file opens with Remove duplicates ready: choose the columns to compare and keep the first of each. Nothing is final until you say so: fix a value, rename a heading or restyle it, then download your a clean table file — or another format from the same window.

Choose what counts

Compare all columns or just the ones that matter.

Checked in Mega Excel Studio

See the result and change anything before you download.

Other formats too

The same export window offers every other format.

Frequently asked questions

You can open your file, convert it and check or change everything in the studio before you pay anything. Downloading the finished file is part of every MojoPDF plan — start with the 7-day trial for $1 and cancel any time.