XLSX→CSVConverter
Convert your XLSX files to CSV format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert CSV to XLSX insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert XLSX to CSV
Upload Your File
Drag & drop your XLSX file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to CSV" and wait a few seconds for processing.
Download
Download your converted CSV file instantly. No registration needed.
Why Convert XLSX to CSV?
Converting XLSX to CSV improves compatibility, reduces file size, or enables your content to work with specific applications and platforms that require the CSV format.
About XLSX and CSV
What is XLSX?
XLSX is Microsoft Excel's default spreadsheet format based on Open XML. It's the global standard for data analysis, financial modeling, budgets, and business reporting.
What is CSV?
CSV (Comma-Separated Values) is a plain-text format for tabular data where values are separated by commas. It's the universal interchange format for databases, spreadsheets, and data analysis tools.
Frequently Asked Questions
How do I convert XLSX to CSV?
Upload your XLSX file using the converter above, then click "Convert". Your file will be processed and you can download the converted CSV file immediately. The entire process takes just seconds.
Is it free to convert XLSX to CSV?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my XLSX file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for XLSX to CSV conversion?
You can convert XLSX files up to 100MB in size. This covers most common use cases for spreadsheet files.
Can I convert multiple XLSX files at once?
Yes, you can upload and convert multiple XLSX files. Each file will be converted to CSV format individually for the best quality results.