CSV to Excel Converter
Convert any CSV or text file to an Excel (.xlsx) spreadsheet instantly. Auto-detects your delimiter, previews the data, and downloads in one click. Your file never leaves your browser.
Drop your CSV file here
or click to browse — .csv and .txt supported
100% private — your file never leaves your browser
How to Convert CSV to Excel
Upload your CSV
Drag and drop your .csv or .txt file, or click to browse. The delimiter is detected automatically.
Preview the data
Check the preview table to confirm the data is parsed correctly. Change the delimiter if needed.
Download .xlsx
Click Download .xlsx to get your Excel file. Numbers are automatically converted from text.
When to Convert CSV to Excel
CSV files are great for data portability, but Excel offers features that make large datasets much easier to work with. Common reasons to convert:
- Apply formatting: Add colour, bold headers, and number formatting to make reports presentable
- Use formulas: CSV stores only values; Excel lets you add SUM, VLOOKUP, IF, and other calculations
- Filter and sort: Excel's AutoFilter makes it easy to slice and explore data without writing code
- Create charts: Visualise your CSV data in bar, line, or pie charts with a few clicks
- Multiple sheets: Split data into separate sheets within a single workbook
- Share with colleagues: Most business users work in Excel, not CSV readers
Frequently Asked Questions
Is this CSV to Excel converter free?
Yes — completely free with no usage limits. The conversion runs entirely in your browser using JavaScript, so there is no server cost.
Are my files uploaded to a server?
No. Your file is read directly in your browser. It never leaves your device and is never sent to any server.
What delimiter does it support?
The tool auto-detects the delimiter from your file (comma, semicolon, tab, or pipe). You can also override it manually if the auto-detection picks the wrong one.
Will numbers stay as numbers in Excel?
Yes — the converter automatically detects numeric values in the CSV and stores them as actual numbers in the Excel file, not as text. This means SUM and other formulas will work correctly.
What is the difference between CSV and Excel?
CSV (Comma-Separated Values) is a plain text format — no formatting, no formulas, no multiple sheets. Excel (.xlsx) supports formatting, formulas, multiple sheets, charts, and more. Converting to Excel makes the data easier to work with in Microsoft Excel or Google Sheets.
Can I set the sheet name?
Yes — before downloading, you can set the sheet name that will appear in Excel. The default is Sheet1.