Highlight Duplicate Values in Excel | Step-by-Step Tutorial

In this Excel tutorial, learn how to highlight duplicate values using Conditional Formatting and COUNTIF formulas. Whether you're working with small tables or large datasets, this step-by-step guide shows you how to quickly identify and visually mark duplicates to clean up your data like a pro.

We'll use a realistic dataset of 100 employee records to demonstrate how you can spot repeated names or IDs in just a few clicks. Perfect for students, professionals, and anyone who works with Excel regularly.

📌 What You’ll Learn:

How to use Conditional Formatting to detect duplicates

How to use the COUNTIF formula for duplicate checking

How to highlight duplicates in large Excel datasets

Best practices for data cleaning in Excel

🧠 Dataset Used: 100 employee entries with repeated names
🖥️ Tool Used: Microsoft Excel (Works with Excel 2016, 2019, 2021, 365)
🎯 Skill Level: Beginner to Intermediate

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Видео Highlight Duplicate Values in Excel | Step-by-Step Tutorial канала Introvert Excel