Convert XLSX to CSV Online — Free
Fast, free XLSX to CSV converter. No registration required.
Drop files here or click to browse
Supports: XLSX files
Max: 100MB (free) · 2GB (Pro)
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How to Convert
Upload your .xlsx 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 .csv file when it's ready.
What is XLSX?
XLSX is the modern Microsoft Excel format. It's the standard for spreadsheets containing data, formulas, charts, and pivot tables.
Format Details
- Full Name
- Microsoft Excel Spreadsheet
- Extension
- .xlsx
Key Features
- Spreadsheet
- Formulas
- Charts
- Data analysis
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
XLSX vs CSV
| Feature | XLSX | CSV |
|---|---|---|
| Full Name | Microsoft Excel Spreadsheet | Comma-Separated Values |
| Extension | .xlsx | .csv |
| Best For | Spreadsheet | Simple format |