Convert XLS to CSV
Fast, free, and secure XLS to CSV conversion. No registration required.
Fast, free, and secure XLS to CSV conversion. No registration required.
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High Quality
Maintain maximum quality during conversion
Fast Processing
Convert files in seconds with our optimized engine
Secure & Private
Files automatically deleted after conversion
How to Convert XLS to CSV
Upload XLS File
Click the "Select File" button to upload your xls file from your device.
Start Conversion
Click the "Convert" button to instantly start converting to CSV.
Download CSV
Download your converted csv file immediately after processing.
Why Convert XLS to CSV?
Converting from Excel Spreadsheet (XLS) to CSV (Comma-Separated Values) is useful when you need universal compatibility with every tool. Excel Spreadsheet (XLS) has limitations: may require specialized software. CSV (Comma-Separated Values) addresses this by offering universal compatibility with every tool and human-readable plain text. CSV is the simplest and most universal tabular data format — a plain text file where values are separated by commas and rows by line breaks.
Xonvert uses professional-grade conversion tools to ensure the highest possible quality when converting Excel Spreadsheet (XLS) to CSV (Comma-Separated Values). The output is optimized for the target format's strengths.
XLS vs CSV — Technical Comparison
| Feature | XLS | CSV |
|---|---|---|
| Format | Excel Spreadsheet (XLS) | Plain text |
| Category | Document | — |
| Delimiter | — | Comma (or semicolon, tab) |
| Encoding | — | UTF-8 (recommended) |
| Standard | — | RFC 4180 |
| Max Size | — | No inherent limit |
About Excel Spreadsheet (XLS)
XLS is Microsoft Excels legacy binary format with a 65,536 row limit and macro support.
Strengths
- ✓ High quality output
- ✓ Wide compatibility
- ✓ Industry standard format
- ✓ Efficient encoding
Limitations
- • May require specialized software
- • Larger files than compressed alternatives
- • Format-specific limitations
About CSV (Comma-Separated Values)
CSV is the simplest and most universal tabular data format — a plain text file where values are separated by commas and rows by line breaks. CSV is the lingua franca of data exchange, supported by every spreadsheet app, database, and programming language.
Strengths
- ✓ Universal compatibility with every tool
- ✓ Human-readable plain text
- ✓ Tiny file sizes
- ✓ Easy to generate and parse programmatically
Limitations
- • No formatting, formulas, or data types
- • No standard for encoding or delimiters
- • No multi-sheet support
- • Commas in data require quoting
Developed by No single creator (computing convention) (1972)
XLS to CSV — Frequently Asked Questions
What is the difference between XLS and CSV?
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Excel Spreadsheet (XLS) xls is microsoft excels legacy binary format with a 65,536 row limit and macro support. CSV (Comma-Separated Values) csv is the simplest and most universal tabular data format — a plain text file where values are separated by commas and rows by line breaks. The key differences are: Excel Spreadsheet (XLS) offers high quality output, while CSV (Comma-Separated Values) provides universal compatibility with every tool.
Will I lose quality converting XLS to CSV?
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Xonvert uses professional-grade conversion tools to ensure the highest possible quality when converting Excel Spreadsheet (XLS) to CSV (Comma-Separated Values). The output is optimized for the target format's strengths.
When should I use CSV instead of XLS?
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Use CSV (Comma-Separated Values) when you need data import/export between systems or database exports and backups. Universal compatibility with every tool. Use Excel Spreadsheet (XLS) when professional workflows.
Can I convert XLS to CSV for free?
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Yes. Xonvert lets you convert XLS to CSV completely free with no registration. Free users get a daily conversion limit. Upgrade to Pro ($4.99/mo) for higher limits, larger file sizes, and priority processing.
What are the best use cases for CSV?
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CSV (Comma-Separated Values) is best for: Data import/export between systems; Database exports and backups; Bulk data uploads; Simple data sharing. Universal compatibility with every tool. Human-readable plain text.