Merge Excel Files

Combine several Excel files into one workbook. Keep each file as its own sheet, or stack sheets that share the same columns into a single continuous table. A fast way to consolidate monthly exports or split reports.

A merge Excel tool combines several workbooks into one, so you can consolidate monthly exports or split reports in seconds. Add two or more XLSX or XLS files and either keep each as its own sheet, or stack sheets that share the same columns into one long table, so it works to combine Excel files or join spreadsheets. Twelve monthly exports with matching headers become one table you can filter and pivot. It all runs on your own device, with no upload cap.

Read the guide: How to Merge Excel Files Into One
Drag Excel files here, or

Everything runs on your device. Files never leave your browser.

How it works

  1. 1

    Add your files

    Drop in two or more XLSX or XLS files. They are listed in the order you add them.

  2. 2

    Choose how to merge

    Keep each file as a separate sheet, or stack rows from sheets with matching columns into one table.

  3. 3

    Download the result

    Get a single XLSX workbook combining everything, ready to open and share.

Instant & 100% private — nothing is uploaded

Everything runs locally in your browser. Your files are processed on your own device and are never sent to a server, so there are no upload waits, no size limits from us, and nothing is ever stored or logged.

Frequently asked questions

What is the difference between the two merge modes?
Keeping each file as its own sheet is best when the files hold different things: you get one workbook with a tab per file. Stacking is best when the files share the same columns, such as twelve monthly exports: their rows are appended into one long table you can filter and pivot.
What happens to mismatched columns when stacking?
When you stack sheets, columns are matched by their header names. Any column that appears in some files but not others is kept, with blank cells where a file did not have it, so no data is lost in the merge.
How many files can I combine at once?
As many as your device can comfortably hold in memory. Because the work happens locally with no upload, you are not limited by an upload size cap or a per-file paywall.

More tools

Excel Formula TranslatorTranslate formula function names between Excel languages.Excel to CSV ConverterTurn an XLSX or XLS sheet into clean, delimited CSV.Excel to JSON ConverterConvert a sheet to JSON row objects keyed by your headers.Excel to HTML & Markdown TableTurn a sheet into a clean HTML or Markdown table.CSV to Excel ConverterTurn a CSV into a real XLSX workbook with typed cells.JSON to Excel ConverterTurn a JSON array of objects into an XLSX workbook.

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