CSV to Excel Converter

How to Use the CSV to Excel Converter

Simply paste your CSV data or drag-and-drop a CSV file into the tool. The converter automatically detects your delimiter (comma, semicolon, tab, or pipe) and converts your data to Excel XLSX format. Preview your data in the table before converting. No signup required, and your data never leaves your browser.

Features

• Auto-detect delimiter: Automatically recognizes comma, semicolon, tab, and pipe separators
• Data preview: See your data in a table before converting to Excel
• Custom sheet names: Name your Excel sheet anything you want
• Auto-fit columns: Automatically adjusts column widths for readability
• Freeze header row: Lock the first row for easy scrolling and reference
• Number detection: Converts numeric strings to actual numbers in Excel
• Date detection: Recognizes and formats dates automatically
• File upload: Drag and drop or click to upload .csv files directly
• Instant conversion: Convert and download as you work

Excel Formatting Options

Auto-fit Columns

When enabled, the converter automatically adjusts column widths based on the content, making your data more readable in Excel.

Freeze Header Row

Lock the first row in place so headers remain visible when scrolling through large datasets. This is ideal for spreadsheets with many rows.

Number Detection

Automatically converts numeric strings (like "100" or "3.14") into actual numbers in Excel. This enables calculations and proper sorting.

Date Detection

Recognizes common date formats and converts them to Excel date values, allowing you to use Excel's date functions and formatting.

Frequently Asked Questions

Does this tool support special characters in CSV fields?

Yes. The tool properly handles quoted fields, escaped quotes, and special characters like newlines, commas, and Unicode characters within CSV values.

What if my CSV has inconsistent delimiters?

Use the "Delimiter" dropdown to manually specify which delimiter to use. The auto-detect feature works best with standard, consistent CSV files.

Can I convert multiple CSV files at once?

Currently, the tool converts one CSV at a time. Each conversion creates a new Excel file with a single sheet. For multiple sheets, upload each CSV separately and save them in the same workbook using Excel's sheet management.

Is my CSV data sent to any server?

No. Everything runs in your browser. Your CSV data is never uploaded or sent anywhere. It's completely private and secure.

Can I use this for large CSV files?

Yes, the tool handles files up to 10MB. However, very large files may take a moment to process. For massive datasets, consider using command-line tools or desktop spreadsheet applications.

What Excel formats are supported?

The tool creates .xlsx files (Excel 2007 and later format), which is compatible with Microsoft Excel, Google Sheets, LibreOffice, and most other spreadsheet applications.

Will my formulas and formatting be preserved?

The tool converts raw CSV data to Excel. If your CSV contains formulas, they will be imported as text. For preserving Excel formulas, use Excel's native import feature.