Flask File Upload Tutorial 🔥 | Upload CSV, Images, PDFs & Excel Files Easily
In this Flask tutorial, you'll learn how to upload different types of files using Python and Flask — including CSV, image files (JPG/PNG), PDFs, and Excel files (.xlsx). Whether you're building a data dashboard or a content uploader, this step-by-step guide will help you implement a powerful file upload feature in your Flask web app.
✅ What you'll learn:
How to configure file uploads in Flask
Handling multiple file types (CSV, images, PDFs, Excel)
Saving uploaded files securely
File validation and best practices
📁 Technologies used:
Flask (Python web framework)
HTML forms
Flask-WTF (optional)
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