CSV to Excel Converter
Convert CSV files to Excel spreadsheets (.xlsx) instantly. Open your data in Excel with proper formatting, column structure, and full compatibility.
Drag & Drop your CSV file here
or
Accepts .csv files
How to Convert CSV to Excel
- Click "Select CSV File" or drag and drop your CSV file into the upload area above.
- Preview your data in the table. The tool shows the first 10 rows along with row and column counts.
- Click "Download Excel (.xlsx)" to save the converted spreadsheet to your device.
Frequently Asked Questions
Does this tool actually create a real .xlsx file?
Yes! This converter uses the SheetJS library to generate a genuine Excel-compatible .xlsx file. The output can be opened directly in Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications.
Is my data uploaded to a server?
No. All processing happens entirely in your browser using JavaScript. Your CSV data never leaves your device, ensuring complete privacy and security.
What delimiters are supported?
The converter automatically handles standard comma-separated CSV files. Most CSV files exported from databases, spreadsheets, and other applications are supported.
Is there a row limit?
There is no strict row limit, but very large files (hundreds of thousands of rows) may take longer to process depending on your device. The Excel format supports up to 1,048,576 rows.
Will my column headers be preserved?
Yes. The first row of your CSV file is treated as the header row and is preserved exactly as-is in the Excel output. All data types including numbers, dates, and text are maintained.