Merge Excel Sheets Online
Use PDF Magic **Merge Excel Sheets** to combine multiple Excel spreadsheets (.xlsx, .xls) and CSV files into a single unified workbook online directly in your browser. All sheets are merged seamlessly into one file with 100% client-side privacy.
Why merge Excel spreadsheets into a single file?
Merging separate Excel workbooks into a single file simplifies financial reporting, consolidates team data, and eliminates the hassle of opening multiple spreadsheets during audits.
Common uses for Merge Excel Sheets
An online Excel merger is essential for accountants, managers, and data analysts consolidating monthly expense files, regional sales reports, or department workbooks into one master file.
How to merge multiple Excel files online
Upload one or multiple .xlsx, .xls, or .csv files from your device or drag them into the dropzone.
Review the list of selected Excel files.
Click Merge Files & Download XLSX to combine all sheets.
Download your new single Excel workbook containing all consolidated worksheets.
Consolidation quality
Worksheet consolidation engine
Combines OpenXML sheet tree structures natively in browser RAM without server uploads.
Supported file extensions
Supports modern Excel workbooks (.xlsx), legacy spreadsheets (.xls), and plain CSV files.
Compatibility and privacy
Universal spreadsheet compatibility
The generated unified .xlsx file opens smoothly in Microsoft Excel, Google Sheets, and LibreOffice Calc.
Privacy and spreadsheet security
PDF Magic prioritizes user security. Since all spreadsheet merging happens locally in your browser, your confidential data is never uploaded to a server.
Frequently asked questions
Is merging Excel files free?
Yes. You can combine multiple .xlsx and .xls files into a single workbook completely free.
Are my spreadsheets uploaded to a server?
No. The sheet merging process runs entirely inside your web browser using JavaScript.
What happens if two Excel files have sheets with the same name?
The tool automatically renames duplicate sheet names with a unique number suffix so no data is overwritten.
Can I merge CSV files with XLSX files?
Yes! You can select a mix of .xlsx, .xls, and .csv files to combine them into one XLSX workbook.
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