📊 .XLSX .CSV

Convert XLSX to CSV
Online — Free

Convert your XLSX (Excel) files to CSV format online for free with FileShiftr. Instantly transform your data between formats. Perfect for developers and data analysts.

Premium feature — $9/month

Convert XLSX to CSV Now Browse All Conversions

📊

What is XLSX (Excel)?

.xlsx format

XLSX is Microsoft Excel's spreadsheet format for organizing and analyzing tabular data.

What is CSV?

.csv format

CSV (Comma-Separated Values) is a lightweight text format for storing tabular data, compatible with virtually any tool.

How to Convert XLSX to CSV

Three simple steps. No software to install, no registration required for basic conversions.

Upload Your File

Drag and drop your .xlsx file or click to browse. Max file size: 1 MB (free) or 3 MB (premium).

Select CSV Format

Choose CSV as the output format. The converter will process your file automatically.

Download Result

Your converted .csv file is ready in seconds. Click download and you're done.

Why Use FileShiftr for XLSX to CSV?

Lightning Fast

Most conversions complete in seconds, not minutes.

Secure & Private

Your files are processed securely and automatically deleted after conversion.

Works Everywhere

No software to install. Convert files from any device with a web browser.

REST API Available

Automate conversions with our developer-friendly API. Perfect for AI agents and workflows.

When to Convert XLSX to CSV

Common use cases for XLSX (Excel) to CSV conversion.

Transform data between formats for different tools and APIs.

Convert configuration files between popular formats.

Prepare data exports for import into other applications.

Automate with the REST API

Convert XLSX to CSV programmatically with a single API call.

terminal

curl -X POST https://fileshiftr.io/api/v1/convert/ \
  -H "X-API-Key: cvt_your_key" \
  -F "file=@input.xlsx" \
  -F "output_format=csv"

Frequently Asked Questions

How do I convert XLSX (Excel) to CSV?

Click the "Convert XLSX to CSV Now" button above, upload your XLSX (Excel) file, and download the converted CSV file. The entire process takes just seconds.

Is the XLSX (Excel) to CSV conversion free?

The XLSX (Excel) to CSV conversion requires a Premium subscription ($9/month). Premium includes higher file size limits and unlimited daily conversions.

Are my files kept after conversion?

No. Your uploaded files and converted output are automatically deleted after processing. We do not store or share your data.

Can I automate this conversion via API?

Absolutely. FileShiftr provides a REST API that lets you convert files programmatically. Sign up for a free API key and send a POST request to /api/v1/convert/ with your file.

Convert XLSX to CSV Online — Free