CSV to XLSX Converter

Convert CSV to XLSX online, for free.

CSV to XLSX Converter

How to Change CSV to XLSX?

To choose your CSV files, click the "Choose Files" button.
To begin the conversion, click the "Convert to XLSX" button.
When "Done" appears in the status bar, click the "Download XLSX" button.

Simple to Use

Simply click the convert button after uploading your CSV files. Additionally, CSV can be batch-converted to XLSX format.


best caliber

For the best possible conversions, we employ both open source and specialized software. In most cases, "Advanced Settings" (optional, check for the icon) can be used to adjust conversion parameters.


Safe & Free

Any web browser can use our free CSV to XLSX Converter. File privacy and security are guaranteed. The files are 256-bit SSL encrypted and destroy themselves after a few hours.

Convert other files to XLSX format


FreeConvert.com can convert your other files to XLSX format:

• XLSX Converter
• XLSM to XLSX
• XLS to XLSX
• ODS to XLSX
• PDF to XLSX

Convert Your CSV files to other formats


FreeConvert.com can convert your CSV files to these other formats:

• CSV Converter
• CSV to ODS
• CSV to XLS
• CSV to PDF
• CSV to XML