Excel to CSV Converter
Converting Excel spreadsheets to CSV creates lightweight, universal data files that can be imported into virtually any database, application, or programming environment. CSV strips away Excel's formatting, formulas, and visual styling to produce clean, comma-separated data that's interoperable everywhere. SublimePDF handles multi-sheet workbooks (exporting each sheet as a separate CSV), properly escapes special characters and embedded line breaks, and gives you control over delimiters and encoding. Essential for data migration, API integration, bulk imports, and sharing structured data across incompatible systems.
Convert Excel to CSV instantly in your browser — no file uploads, no registration, and completely free.
Drop your Excel files here
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How to Convert Excel to CSV Online
Upload your Excel spreadsheet
Drag and drop your .xls or .xlsx file. For multi-sheet workbooks, the converter lists all available worksheets so you can choose which ones to export as CSV.
Configure CSV export options
Select the worksheet to export, choose the delimiter (comma, semicolon, or tab), set text encoding (UTF-8 with or without BOM for Excel compatibility), and configure how dates, numbers, and empty cells should be represented in the output.
Download your CSV file
Each selected sheet is exported as a clean CSV with proper RFC 4180-compliant quoting and escaping. Multi-sheet exports produce separate CSV files bundled as a ZIP download.
Excel to CSV Converter Features
When to Convert Excel to CSV
- Export Excel customer lists and contact databases for CRM or email marketing platform import
- Prepare Excel financial data as CSV for import into QuickBooks, Xero, or other accounting software
- Convert Excel product catalogs to CSV for bulk upload to Shopify, WooCommerce, or Amazon Seller Central
- Share Excel datasets with developers who need CSV for database seeding, API testing, or ETL pipelines
- Extract clean tabular data from formatted Excel reports for use in Python, R, or SQL analysis workflows
About Excel and CSV
What is Excel?
Microsoft Excel Spreadsheet (.xls, .xlsx) — The standard spreadsheet format for organizing, analyzing, and visualizing data. Learn more about Excel →
What is CSV?
Comma-Separated Values (.csv) — A simple data format where values are separated by commas, widely used for data exchange. Learn more about CSV →
Privacy & Security
Your files never leave your device. All conversion happens locally in your browser using WebAssembly technology.
Excel to CSV Conversion FAQ
What happens to formulas in the Excel file?
How are dates and currencies formatted in the CSV?
What about merged cells in the spreadsheet?
Which delimiter should I use?
Can I export multiple sheets at once?
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