CSV to XLS Converter
Free online converter - no file upload, no account. Everything runs locally in your browser.
Open CSV to XLS ConverterHow to convert CSV to XLS
Open the converter
Click the button below to open the CSV to XLS tool - no sign-up required.
Add your content
Paste, type, or drop your CSV file into the input area.
Download the result
The tool instantly produces XLS output. Copy to clipboard or download the file.
About these formats
Comma-Separated Values - simple tabular format compatible with Excel, Google Sheets, and databases.
Legacy Microsoft Excel workbook (.xls) compatible with older versions of Excel and many enterprise systems.
Why convert CSV to XLS?
Your target application or platform requires XLS format.
XLS may offer better compatibility or features for your use case.
Sharing or publishing workflows require a specific format.
Converting ensures compatibility across different devices and software.
Frequently Asked Questions
Is the CSV to XLS converter free?
Yes - 100% free with no limits. No account, no credit card, no watermarks. The tool runs entirely in your browser.
Do you upload my files to a server?
No. All processing happens locally in your browser using client-side code. Your data never leaves your device, ensuring complete privacy.
What is CSV?
Comma-Separated Values - simple tabular format compatible with Excel, Google Sheets, and databases.
What is XLS?
Legacy Microsoft Excel workbook (.xls) compatible with older versions of Excel and many enterprise systems.
How do I convert CSV to XLS?
Click "Open Converter", paste or drop your CSV content into the input area, then copy or download the XLS result. The conversion is instant.
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Ready to convert?
Open the tool - it takes under 10 seconds.