Excel to CSV Convert
Turn Excel .xlsx and .xls workbooks into clean CSV files in seconds. Each workbook's first worksheet is exported as comma-separated values with a UTF-8 BOM, so Chinese and accented text open perfectly in Excel and Google Sheets.
Why convert Excel to CSV with AnyDocFlow?
Clean CSV Output
Values are exported exactly as they appear — no extra quoting quirks — so your data lands in databases and other tools exactly as intended.
First Sheet Export
Like Excel's own Save As CSV, only the first worksheet is exported, keeping the output focused and predictable.
UTF-8 with BOM
Every file is written with a UTF-8 BOM, so Chinese, accented, and emoji characters display correctly when opened in Excel or Google Sheets.
Batch Convert & ZIP Download
Drop in as many workbooks as you need at once and download every result individually, or grab them all as a single ZIP archive.
No Excel or Office Required
Everything runs in your browser with SheetJS. No Microsoft Excel, no plugins, and nothing to install.
100% Private & Free
Files never leave your device. Conversion is fully local, free, and works without an account or registration.
About Excel to CSV conversion
CSV (comma-separated values) is the universal plain-text format for moving tabular data between systems, but Excel doesn't always make exporting easy — especially when your data contains Chinese or accented characters. AnyDocFlow's Excel to CSV converter reads .xlsx and .xls workbooks with SheetJS and exports the first worksheet of each as clean, comma-separated text. Every file is written with a UTF-8 BOM so Excel and Google Sheets detect the encoding correctly and your characters render properly instead of as garbled symbols. Conversion happens entirely in your browser, so your data never touches a server and the whole process is fast and private.
How to convert Excel to CSV
Three simple steps — no account, no software, and no data leaving your device.
Add your files
Click the drop zone or drag .xlsx or .xls files into the page. You can select several files at once.
Wait for conversion
Each workbook is read locally and its first worksheet exported as a CSV file — usually in under a second.
Download your CSV
Download each converted file with one click, or press Download all to receive every result as a single ZIP archive.
Notes
Only the first worksheet of each workbook is exported — matching Excel's own Save As CSV behavior (CSV has no sheets). There is no file size limit: everything is processed locally in your browser. Output files use a UTF-8 BOM so Excel, Google Sheets, and other programs recognize the encoding correctly.