Convert CSV to XLS Online — Free
Fast, free CSV to XLS converter. No registration required.
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How to Convert
Upload your .csv file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .xls file when it's ready.
What is CSV?
CSV is a simple format for storing tabular data. Each line represents a row, with values separated by commas. It's universally compatible with spreadsheet applications.
Format Details
- Full Name
- Comma-Separated Values
- Extension
- .csv
Key Features
- Simple format
- Universal
- Data exchange
- Lightweight
What is XLS?
XLS is the legacy Microsoft Excel format used before Office 2007. While superseded by XLSX, it's still widely found in enterprise data exports and archived files.
Format Details
- Full Name
- Microsoft Excel 97-2003
- Extension
- .xls
Key Features
- Legacy support
- Wide compatibility
- Spreadsheet
- Data analysis
CSV vs XLS
| Feature | CSV | XLS |
|---|---|---|
| Full Name | Comma-Separated Values | Microsoft Excel 97-2003 |
| Extension | .csv | .xls |
| Best For | Simple format | Legacy support |