Convert XLS to CSV
Export legacy Excel data to CSV format for use with databases, data tools, or any CSV-compatible application. Download your converted CSV file online.
Drop your XLS files here
Up to 50MB per file.
Files are encrypted and auto-deleted after conversion
How to Convert
- 101
Upload your XLS files
Drag and drop or select XLS 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 XLS to CSV?
XLS is the legacy Microsoft Excel workbook format used by older spreadsheet systems. 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 XLS to CSV do?
It creates a genuine CSV file from your XLS. XLS is the legacy Microsoft Excel workbook format used by older spreadsheet systems, 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 XLS to CSV conversion?
Records and values from XLS 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 XLS to CSV run in my browser?
XLS 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 XLS files to CSV?
Yes. Add multiple XLS files, convert them together, and download each CSV result separately or collect the completed batch in a ZIP file.
What is the XLS to CSV file size limit?
XLS files can currently be up to 50MB.