XLSX to CSV converter online
XLSX → CSV: upload a file and download the converted result.
XLSX to CSV online
Extract the first worksheet of an Excel file as clean UTF-8 CSV — the format command-line tools, imports and scripts actually want.
- Feed spreadsheet data into scripts, databases and BI imports.
- Diff spreadsheet contents in version control.
How to convert XLSX to CSV
Upload a file, choose a format and download the converted result.
Upload a file
Click the upload area or drag the file onto the page.
Choose a format
The list of target formats updates according to the source format.
Download the result
After conversion, a download button will appear.
When to use XLSX to CSV
Use this direction when a XLSX file needs to be opened, shared, published or processed as CSV.
- Useful for quick file preparation without complex settings.
- Helps exchange data between services, editors and websites.
- Creates a more compatible or compact result when the target format allows it.
What to check after conversion
Open the result and check encoding, line breaks, tables, special characters and nested data.
- For tables, use clear column headers.
- For JSON, XML, YAML and TOML, valid syntax is important.
- For images, the result depends on browser support for the selected format.
What is XLSX?
XLSX is a structured data format used to exchange, store or import information.
What is CSV?
CSV is a structured data format used to exchange, store or import information.
FAQ
Answers to common questions.
Which sheet is converted?
The first worksheet in the workbook. Formulas are exported as their last calculated values.
How do I convert XLSX to CSV?
Upload a file, start the conversion and download the result.
Do I need to register?
No, basic conversion is available without registration.
How can I improve the result?
Use a valid file extension, correct data structure and check the converted file after downloading.
Related converters
Other directions that are often useful with this conversion.