Free Online Excel Merger - ATools

Free online Excel merger: merge multiple .xlsx/.xls into one workbook, keep sheets or merge into a single sheet. Runs locally.

Merge multiple Excel files and export a combined workbook (local only, no uploads).

Files

0 · Sheets: 0

Merge mode

Keep sheets (append into a new workbook with renamed sheets)Merge into one sheet (append rows and add source columns)

Note: complex formatting and cross-sheet formulas may not be fully preserved.