What Is Excel to CSV Converter?
Convert Microsoft Excel spreadsheets (.xlsx, .xls, .xlsm, .xlsb) into standard CSV (Comma Separated Values) text files online for free. Custom output delimiter support (comma, semicolon, tab, pipe), worksheet tab selection, and batch conversion options. All processing runs 100% locally inside your web browser with zero server uploads.
Key Features of Excel to CSV Converter
Here's what makes ReadyForFile's Excel to CSV Converter stand out from other online tools:
- Instant browser-based Excel (.xlsx / .xls) to CSV conversion
- Choose output delimiter: Comma (,), Semicolon (;), Tab (\t), or Pipe (|)
- Worksheet tab selector for multi-sheet workbooks
- Batch export: Convert multiple Excel files or export all sheets at once
- 100% private: Zero server data transfers
How to Use Excel to CSV Converter (Step-by-Step)
Follow these simple steps to use the excel to csv converter on ReadyForFile:
- Step 1: Upload Excel Spreadsheet(s) — Drag and drop your .xlsx, .xls, or .xlsm files into the dropzone, or click to select files.
- Step 2: Configure Delimiter & Sheet Options — Select your target CSV delimiter (comma, semicolon, tab, pipe) and choose which worksheet tab to export.
- Step 3: Download CSV File — Click 'Download CSV' to save your converted CSV text file instantly.
Common Use Cases
People use this excel to csv converter for a variety of everyday and professional tasks:
- Preparing Excel spreadsheet data for database import (MySQL, PostgreSQL, MongoDB)
- Converting financial or sales reports from XLSX to CSV format for software integration
- Exporting specific worksheet tabs from complex multi-sheet Excel workbooks
- Converting European format Excel files to semicolon (;) or comma (,) CSV files
Why Use a Browser-Based Excel to CSV Converter?
Traditional desktop applications require manual installation, software licenses, and frequent updates. ReadyForFile's Excel to CSV Converter runs entirely inside your web browser, which means zero software downloads, instant access from any device, and maximum data privacy. Your files are processed locally — they never get uploaded to external servers (where technically feasible). This makes it ideal for sensitive documents, personal files, and professional workflows where data security matters.
Supported File Formats
ReadyForFile's Excel to CSV Converter supports the following formats: XLSX, XLS, XLSM, XLSB, CSV, TXT, TSV. Whether you're working with common formats or specialized file types, our tool handles them all seamlessly in your browser.
Try Excel to CSV Converter Now — It's Free!
No signup required. Open the tool, upload your file, and get results in seconds. Works on any device.
Open Excel to CSV ConverterFrequently Asked Questions
How do I convert XLS or XLSX to CSV?
Upload your .xlsx or .xls file, select your preferred CSV delimiter (comma, semicolon, tab), and click Download CSV.
Does converting Excel to CSV upload my file to any server?
No. All Excel parsing and CSV generation is performed 100% locally in your browser using client-side JavaScript. Your file data never leaves your computer.
Can I convert multi-sheet Excel workbooks?
Yes! You can select a specific worksheet tab to export, or choose to export all worksheet tabs into separate CSV files.
Can I generate European semicolon-separated (;) CSV files?
Yes! Simply change the CSV Delimiter setting to Semicolon (;) before downloading.
Is Excel to CSV Converter on ReadyForFile really free?
Yes, 100% free. There are no hidden fees, usage limits, watermarks, or mandatory account signups. You can use the Excel to CSV Converter as many times as you need.
Does Excel to CSV Converter work on mobile phones?
Yes. ReadyForFile is built with a responsive design that works seamlessly on smartphones, tablets, laptops, and desktop computers running any modern web browser.