Free CSV to Excel Converter
Convert CSV to an Excel (.xlsx) workbook instantly — upload or paste a CSV file and download the result.
Drop your CSV file here
or click to browse
How to convert
- 1
Upload your CSV file by dragging it onto the drop zone, or paste your CSV data into the text area.
- 2
Click the Convert button to generate the Excel workbook.
- 3
The .xlsx file is generated in your browser and ready to download.
- 4
Click Download to save the Excel file to your device.
Features
- 100% private — data never leaves your browser
- No file uploads to any server
- No signup or account required
- Free with no usage limits
- Generates standard .xlsx format
- Compatible with Excel, Google Sheets, and LibreOffice
- Full UTF-8 and special character support
- Works on any device with a modern browser
What is Excel (XLSX)?
Excel (.xlsx) is the standard spreadsheet format used by Microsoft Excel, Google Sheets, LibreOffice Calc, and Apple Numbers. Converting CSV to Excel preserves your data in a workbook format with proper cell structure, making it easy to apply formulas, charts, and formatting.
When to convert?
Convert CSV to Excel when you need to share data with colleagues who use Excel, when you need to add formatting or formulas, or when you need to combine multiple data sources into a single workbook.
Frequently asked questions
Is my data safe when converting CSV to Excel?
Yes. The conversion runs entirely in your browser using JavaScript. Your data is never uploaded to any server.
What Excel format is generated?
The tool generates an .xlsx file (Excel 2007+ format), compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and Apple Numbers.
Does it preserve data types?
The converter creates an Excel workbook with your CSV data. Numbers and dates are stored as text to preserve the original CSV formatting exactly.
Can I convert large CSV files to Excel?
Yes. There are no server-side limits. Very large files may take a moment to process depending on your device's memory.
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