Convert CSV to Excel Online

Converting CSV to Excel makes your data immediately shareable with business users who work in spreadsheets. The output is a proper .xlsx file that opens in Excel, Google Sheets, Numbers, and LibreOffice — column headers, data in the correct cells, ready to sort, filter, and format. No Excel installation required on your end.

Typical use cases include preparing automated report outputs for stakeholders who prefer spreadsheets, turning a database extract into a shareable deliverable, adding a download button to a web application that outputs Excel files, and converting pipeline output for a business user who needs to work with the data further in a spreadsheet.

The output is a plain data table without formulas or conditional formatting. If you need calculated columns, pivot tables, or charts, open the downloaded file in Excel and add them there. Excel has a hard row limit of 1,048,576 rows — for files larger than this, split the CSV first using the Split tool and export each chunk separately.