Convert XLTX to XLS Online — Free
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Upload your .xltx 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 XLTX?
XLTX is the standard Microsoft Excel template format in Office Open XML. It stores cell formatting, conditional rules, charts, and formulas as reusable templates without macros.
Format Details
- Full Name
- Excel Template
- Extension
- .xltx
Key Features
- OOXML format
- Excel template
- No macros
- Standardized
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 While superseded by XLSX, it's still widely found in enterprise data exports and archived files.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
XLTX vs XLS
| Feature | XLTX | XLS |
|---|---|---|
| Full Name | Excel Template | Microsoft Excel 97-2003 |
| Extension | .xltx | .xls |
| Best For | OOXML format | Legacy support |