Convert XLS to CSV Online
CSV is the universal data exchange format. Converting XLS to CSV lets you import your spreadsheet data into any database, programming language, or data analysis tool.
Our converter extracts the first sheet from XLS files and produces clean, well-formatted CSV output.
What is XLS?
XLS is Microsoft Excel's older binary spreadsheet format. It is a structured format for data tables with support for formulas, formatting, charts, and multiple sheets.
XLS files cannot be directly imported by most databases, data analysis tools, or programming languages without conversion first.
What is CSV?
CSV (Comma-Separated Values) is the simplest and most universal data format. Every database, programming language, and data tool can read CSV files.
CSV strips all formatting and formulas, preserving only the raw data values - making it perfect for data import, analysis, and database operations.
Why Convert XLS to CSV?
Database Import
Import your spreadsheet data into MySQL, PostgreSQL, SQLite, and any other database.
Python and R
CSV is the standard format for data exchange between systems and APIs.
API and Scripts
CSV is the standard format for data exchange between systems and APIs.
Universal Format
Every application, tool, and service that works with data accepts CSV.
How to Convert XLS to CSV
Upload XLS
Select your XLS file.
Choose CSV output
Select CSV as your output format.
Convert
Click convert. The first sheet will be exported as CSV.
Download CSV
Save your CSV file for use in databases and data tools.
Ready to Convert XLS to CSV?
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Convert XLS to CSV NowPro Tips
Only first sheet exports
CSV exports only one sheet. Export multiple sheets separately if needed.
Formulas become values
XLS formulas are converted to their calculated values in CSV.
Check encoding
Use UTF-8 encoding for CSV to ensure international characters display correctly.
参考资料
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Our converter handles all XLS files automatically with no quality loss.
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