File ToolsFree

CSV to Excel

Convert CSV files to Excel XLSX format directly in your browser. Preserves the full data structure, handles quoted fields, and supports comma, semicolon, tab, and pipe delimiters. Download a ready-to-use .xlsx file compatible with Excel, Google Sheets, and LibreOffice.

Drop your CSV anywhere, click to browse

CSV files · or paste CSV below

Ctrl+Vto paste a copied file

Frequently Asked Questions

Which CSV delimiters are supported?▼
Comma (standard), semicolon (European CSVs), tab (TSV), and pipe. The delimiter is auto-detected from the file or can be manually selected.
Can I open the result directly in Microsoft Excel?▼
Yes. The output is a standard .xlsx file fully compatible with Excel 2010 and later, Google Sheets, LibreOffice Calc, and Numbers for Mac.
Are column headers preserved?▼
Yes. The first row of the CSV becomes the header row in the Excel file, displayed in bold by default.
Is the conversion done in the browser?▼
Yes. The SheetJS library handles conversion locally. Your CSV data is never uploaded to any server.
Does it support large CSV files?▼
Files with tens of thousands of rows convert well. Very large CSVs (hundreds of thousands of rows) may be slow due to browser memory limits.