Merge Excel Files

Combine several Excel or CSV files into one workbook or one sheet. Free, no sign-up, files stay on your device.

Choose Excel or CSV filesor drag and drop files here

Each sheet as its own tab Stack all rows into one sheet First row is a header Add “Source file” column

🔒 100% private — processing happens in your browser. Nothing is uploaded.

How to use the merge Excel files

Add the Excel (XLSX, XLS, ODS) or CSV files and put them in order.
Choose whether every sheet becomes its own tab or all rows are stacked into one sheet.
Click Merge and download merged.xlsx.

Combine monthly reports, exports from several shops or survey results from colleagues in seconds. “Stack into one sheet” keeps the header only once and can add a column showing where each row came from — ideal for pivot tables. Files are read in your browser, so confidential spreadsheets are never uploaded.