What is the difference between merge modes?

One Sheet combines rows into a single worksheet. Keep Sheets preserves each source sheet separately.

Is there a file size or quantity limit?

Yes. You can upload up to 50 files, and each file must be 2 MB or smaller.

Are files uploaded to your server?

No. Processing runs in your browser in this version.

Free Online Tool

Excel Merge Tool

Merge multiple Excel files quickly and download one output workbook in seconds. This service is 100% free to use.

[XLSX] Choose Excel Files select multiple .xlsx or .xls files

Limit: max 50 files, each max 2 MB

Merge Mode

One Sheet All rows are merged into one sheet. Header row is kept once. Keep Sheets Each source sheet is kept separately in the output file.

How to Merge Excel Files

1. Upload Files

Add your .xlsx or .xls files to the queue.

2. Choose Merge Mode

Select one-sheet merge or keep source sheets separate.

3. Download Output

Download the merged workbook file.

Popular Use Cases

Use this free tool to combine monthly reports, merge attendance sheets, create one master workbook from multiple teams, and organize exported Excel files into a single output.

Merge Mode Guide (Best Results)

One Sheet: best when all source files have similar columns and you want one combined table.

Keep Sheets: best when each workbook has different structures and you want every sheet preserved.

Common Errors and Quick Fixes

Merge button stays disabled: make sure valid .xlsx or .xls files are selected.

Unexpected output structure: switch between One Sheet and Keep Sheets based on your data layout.

Upload rejected: ensure each file is 2 MB or smaller and within the file count limit.

Sheet names look changed: long or invalid sheet names are auto-adjusted for Excel compatibility.

Privacy and File Handling

Excel files are processed in your browser in this free version. Your files are not uploaded to our server during merge operations.

Related Tools

Need document image conversion? Use PDF to JPG Converter. Need image-to-document conversion? Use JPG to PDF Converter. Need lighter image files? Use Image Compressor. Need smaller PDF reports? Use PDF Compressor.

FAQ: Excel Merge

Can I merge multiple workbooks at once? Yes. Upload multiple files and merge them in one run.

What is the difference between modes? One Sheet combines rows; Keep Sheets preserves each sheet separately.

Are my files uploaded to server? No. Processing runs in your browser for this version.

What file formats are supported? This page supports .xlsx and .xls files.

How many files can I upload at once? You can upload up to 50 Excel files in one batch.

What is the maximum file size per Excel file? Each file must be 2 MB or smaller.

Can I remove files from queue before merging? Yes, use the remove icon next to each file in the queue.

Will formatting and colors stay exactly same? Most formatting is preserved, but some complex workbook-specific styles may vary based on source files.

Why is my output file name different? The tool auto-generates a merged output name with a timestamp.

Does this tool work on mobile? Yes, it works on modern mobile and desktop browsers.

Do you store uploaded or merged files? No, files are not stored on our server in browser-based processing mode.

Is this service free? Yes, this Excel Merge tool is free to use.