Convert CSV to XLTX Online — Free
Fast, free CSV to XLTX 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 .xltx 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 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
CSV vs XLTX
| Feature | CSV | XLTX |
|---|---|---|
| Full Name | Comma-Separated Values | Excel Template |
| Extension | .csv | .xltx |
| Best For | Simple format | OOXML format |