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Excel tools: duplicates, combined sheets, matched columns and spreadsheet cleaning

Find duplicate rows, combine Excel sheets, match records and add columns, clean text, or remove completely blank rows locally in your browser. No sign-up required.

Open the Excel tools menu above to find duplicates, combine sheets, or match and add columns.

What this tool supports

Use regular .xlsx and .xls tables with headers in the first row. Hidden rows are included; entirely blank rows are skipped. Saved formula results are used without recalculation. Output files are new workbooks and do not preserve source formulas or formatting.

Spreadsheet cleaning:Clean text by column or remove completely blank rows. Each mode reads your original file independently.

.xlsx and .xls, with headers in the first row. Up to 10 MiB per file and 30 MiB in total. Up to 10,000 rows and 50 columns per sheet, with 1 million input cells in total. Exports have a separate 1 million cell limit, including source references and issue sheets. Processing time depends on your device.

Duplicate checking, combining sheets, and adding columns also run locally. Downloads are new files; source files are unchanged. These tools do not save cloud files or task history.

Choose a tool for each task. To continue in another tool, download your results first and choose that file there.

Read the privacy details

Need to compare two sets of records?

Use the comparison workspace to match records and review additions, missing rows, and differing values.

Compare Excel files
RowKite · See the differences side by sideComparison files stay on your device. Download your report before leaving.