Convert XLSX to CSV
Export Excel spreadsheet data to CSV. Creates a comma-separated values file compatible with any data tool or database.
Drop your XLSX files here
Up to 50MB per file.
Files are encrypted and auto-deleted after conversion
How to Convert
- 101
Upload your XLSX files
Drag and drop or select XLSX files from your device. You can upload multiple files at once.
- 202
Configure Output
Start the conversion. Crest Convert will prepare the CSV file using the appropriate format engine.
- 303
Download CSV files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert XLSX to CSV?
XLSX is the current Microsoft Excel workbook format with worksheets, formulas, and formatted cells. Converting it to CSV creates a simple tabular data format used by spreadsheets, databases, and data tools, ready for workflows that use the destination format.
CSV opens in Excel, Google Sheets, Apple Numbers, LibreOffice Calc, database tools, and most programming languages.
Frequently Asked Questions
What does converting XLSX to CSV do?
It creates a genuine CSV file from your XLSX. XLSX is the current Microsoft Excel workbook format with worksheets, formulas, and formatted cells, while CSV is a simple tabular data format used by spreadsheets, databases, and data tools. The result is ready for workflows that use the destination format.
What is retained in the XLSX to CSV conversion?
Records and values from XLSX are arranged into spreadsheet rows and columns in CSV, making the result convenient to sort, filter, calculate, and review.
Which apps can open the converted CSV file?
CSV opens in Excel, Google Sheets, Apple Numbers, LibreOffice Calc, database tools, and most programming languages.
Does XLSX to CSV run in my browser?
XLSX to CSV uses a compatible conversion engine on our server. The file is transferred over an encrypted connection, processed securely, and automatically deleted shortly after conversion.
Can I batch convert XLSX files to CSV?
Yes. Add multiple XLSX files, convert them together, and download each CSV result separately or collect the completed batch in a ZIP file.
What is the XLSX to CSV file size limit?
XLSX files can currently be up to 50MB.