ExcelCompare

Free Excel to CSV Converter

Convert your Excel files to CSV format instantly — free, private, and 100% browser-based.

Max 100 MB
All processing happens in your browser. No data is uploaded.

Excel

Microsoft Excel Worksheet (XLS/XLSX). A spreadsheet format that stores data in cells organized by rows and columns. Supports formulas, formatting, and multiple sheets.

.xls.xlsx

CSV

Comma-Separated Values. A plain text format for tabular data. Each row is a line, and columns are separated by commas. Universally compatible with spreadsheets, databases, and programming languages.

.csv

How to Convert Excel to CSV

Three simple steps to convert your Excel files to CSV format

Step 1

Upload Excel File

Drag and drop your .xls or .xlsx file onto the upload area, or click to browse your files.

Step 2

Auto-Convert

Your file is automatically converted from Excel to CSV format right in your browser.

Step 3

Download CSV

Click the download button to save your converted CSV file to your device.

Frequently Asked Questions

Upload your .xls or .xlsx file using the drag-and-drop area above, then click the Convert button. Once the conversion is complete, click Download to save the CSV file to your device.
Yes, completely free with no usage limits, no account required, and no hidden fees. Convert as many files as you need.
Your data never leaves your device. All conversion happens locally in your browser using JavaScript. We do not upload, store, or process your files on any server.
We support both legacy .xls (Excel 97-2003) and modern .xlsx (Excel 2007+) file formats. Simply drag and drop your file to start converting.
If your Excel file contains multiple sheets, all sheets are converted and concatenated into a single CSV file, with an empty row separating each sheet's data.
There is no strict file size limit. Since the conversion runs entirely in your browser, performance depends on your device. Files up to 100 MB are generally handled smoothly.
No installation required. This tool runs entirely in your web browser. Just open the page and start converting your Excel files to CSV.
XLS/XLSX is a binary spreadsheet format that supports formulas, formatting, multiple sheets, and charts. CSV is a plain text format where each row is a line and values are separated by commas. CSV is universally compatible but stores only raw data without formatting.

Related Tools

Excel Compare — Compare Two Excel Files Online, Free

Compare two Excel files side-by-side in seconds. Instantly highlight every changed cell, added row, and deleted value. No upload, 100% private, works in your browser.

Free Online Text Compare Tool | Diff Checker

Free online text compare and diff checker. Find differences between two texts side by side — no sign-up, no upload, 100% private.

Reconcile Two Excel Files Online — Match Records by ID, No VLOOKUP

Reconcile two Excel spreadsheets by a unique ID like Invoice No., SKU, or Employee ID. Instantly spot mismatched values, missing records, and added rows — no formulas needed.

Excel to CSV Converter — Free Online Tool | XLS/XLSX to CSV