XLS to CSVConverter — Fast & Free Online
Convert XLS to CSV — original file stays on your device, only the upload goes to the server. CSV format offers universal compatibility.
How XLS to CSV Conversion Works
The XLS file format stores data in the XLS format. Converting to CSV produces a spreadsheet file that stores tabular data as plain text with one row per line and field values delimited by commas, readable by any spreadsheet or database tool. This conversion changes the file's encoding, compression method, and supported feature set. Cell values and structure are preserved; formulas are evaluated to their computed values in plain-text target formats. This makes CSV the practical choice when the destination system requires it or when the target format offers better compatibility or compression. 1converter runs this conversion on the server: your file is uploaded encrypted over HTTPS, converted using trusted open-source libraries, and the output is held for 24 hours before automatic deletion.
How to Convert XLS to CSV
Follow these simple steps to convert your XLS files to CSV format in seconds
Step 1
Drop your XLS file into the box above or pick it from your device
Step 2
Confirm CSV as the target format
Step 3
Keep the original layout, fonts, and images in the CSV file
Step 4
Start the conversion and watch the live progress
Step 5
Download the finished CSV file — it is deleted from our servers after 24 hours
Average conversion time: Less than 2 minutes
Visual Conversion Preview
Source file
Converting...
~5s
Output file
This visualization shows the typical conversion process from XLS to CSV format, including expected size reduction and quality retention.
Why Convert XLS to CSV?
Discover the advantages of converting your XLS files to CSV format
XLS offers smaller than xlsx
CSV provides simple format
No software installation needed for XLS to CSV
Maintain cell formatting during conversion
CSV provides small size
Additional Features
Popular Use Cases
See how professionals use our XLS to CSV converter in real-world scenarios
Inventory lists converted to CSV
Convert XLS to CSV for this purpose quickly and easily.
XLS files for data exchange
Convert XLS to CSV for this purpose quickly and easily.
XLS files for analytics
Convert XLS to CSV for this purpose quickly and easily.
Financial reports exported as CSV
Convert XLS to CSV for this purpose quickly and easily.
Simple spreadsheets with CSV output
Convert XLS to CSV for this purpose quickly and easily.
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Frequently Asked Questions
Everything you need to know about converting XLS to CSV
Still Have Questions?
Our support team is here to help you with any questions about XLS to CSV conversion.
Learn More About File Conversion
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