Native .xlsx Output
Generates proper .xlsx files (Excel 2007+) compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and Numbers.
CSV to Excel Converter
Rows —Cols —Size —
Click Convert to generate the Excel file
Convert CSV to Excel Online
The CSV to Excel Converter transforms your CSV data into downloadable Excel (.xlsx) files with properly formatted column headers and data types. Compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and Numbers. Uses SheetJS for reliable, browser-based conversion.
Key Features
Data Type Detection
Automatically detects numeric values, dates, and text to ensure proper data types and formatting in the Excel output.
100% Private
All conversion runs entirely in your browser using SheetJS. No data is ever sent to a server. Your files stay private.
How to Use
1
Paste or Upload CSVPaste your CSV data into the editor or upload a .csv file.
2
Preview the DataReview your data in the table preview to verify headers and formatting.
3
Download .xlsxClick the Download button to export as an Excel file with proper column types.
Common Use Cases
Sharing Data with Non-Technical Teams
Convert CSV exports into Excel files that business teams can open, filter, and analyze in familiar spreadsheet software.
Report Generation
Transform raw CSV data into formatted Excel reports with proper column headers and data types for stakeholder review.
Data Analysis Preparation
Convert CSV datasets to Excel for pivot tables, charts, and advanced data analysis in Microsoft Excel or Google Sheets.
Archiving Data Exports
Save CSV data in the widely-supported .xlsx format for long-term archival with preserved data types and formatting.
Frequently Asked Questions
How do I convert CSV to Excel?
Paste your CSV data or upload a .csv file. Click the Download button to export as an .xlsx file with proper column headers and data types.
What Excel format is generated?
The converter generates .xlsx format (Excel 2007+) compatible with Microsoft Excel, Google Sheets, LibreOffice Calc, and Numbers.
Are column types preserved?
Yes. The converter detects numeric values, dates, and text to ensure proper data types in the Excel output file.