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Convert · browser workspace

Merge Excel Sheets into One - Combine Tabs

Combine all sheets in an Excel workbook into one table. Merge tabs in your browser.

Quick start

Built for convert messy .xlsx files into clean, machine-readable csvs.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

  1. 1Choose a supported file or use sample data when available.
  2. 2Set the options shown for this workflow.
  3. 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…

How to Excel to CSV

  1. 1Upload Excel file
  2. 2Select "Merge All Sheets" mode
  3. 3Download combined CSV

Why Use This Tool?

  • ✓Combine Tabs - No more copy-pasting sheets
  • ✓Add Sheet Name - Tracks source of each row
  • ✓Fast - Process complex workbooks
  • ✓Private - Excel data stays local
  • ✓Free - No Excel license needed

Frequently Asked Questions

How do I know which sheet data came from?

The tool adds a "_SHEET" column with the name of the original tab.

Does it handle different columns?

Yes, it unions all columns found across all sheets.