Merge Excel Files and Sheets Online
Easily merge Excel files into a single spreadsheet online. Combine multiple XLSX and CSV sheets directly in your browser without uploading data. Try it free.
About Excel Merger Tool
The Excel Merger Tool lets you combine multiple Excel files (XLSX, XLS) and CSV files into a single unified workbook or sheet. Designed for analysts, accountants, and office professionals, it removes the manual effort of copying and pasting data across separate spreadsheets.
Because the tool runs entirely in your web browser, your sensitive data stays on your local device without ever being uploaded to external servers. It requires no software installation or account registration, providing a fast and secure way to consolidate spreadsheet data.
Key features
- Merge multiple XLSX, XLS, and CSV files instantly
- Client-side processing keeps your spreadsheet data private
- Combine sheets into one tab or separate worksheets
- Rearrange file order with simple drag-and-drop controls
- Works directly in modern web browsers with no installation
- Free to use without creating an account
How to use Excel Merger Tool
- Upload or drag and drop your Excel and CSV files.
- Reorder the files to set the preferred merge sequence.
- Select whether to merge into a single sheet or separate tabs.
- Click the merge button to combine your spreadsheets.
- Download the consolidated Excel file to your computer.
Who is it for?
- Accountants combining monthly financial reports into an annual workbook
- Data analysts aggregating survey exports and marketing CSV files
- Sales managers consolidating individual regional sales performance sheets
- Educators merging grade rosters from different classes into one file
Frequently asked questions
Is it safe to merge confidential spreadsheets with this tool?
Yes. Processing takes place locally in your web browser, meaning your spreadsheet files and private data are never sent to external servers.
Can I combine CSV files with XLSX files?
Yes, the tool supports both CSV and XLSX formats and allows you to merge them together into a unified output.
Is there a limit on how many files I can merge?
You can merge multiple files simultaneously, though overall capacity depends on your device memory since processing occurs locally in your browser.
Do I need to create an account to use the Excel merger?
No, the tool is completely free to use without signing up or providing personal information.
Will merging files preserve original formulas and formatting?
Raw tabular data, numbers, and text are preserved. Complex external workbook links and custom macros may be converted to static values during consolidation.