Introduction to Data Preparation in Tableau: Tableau Desktop Guide (2026)

Introduction to Data Preparation in Tableau in Tableau Desktop

Beginner Topic 1 of 10

What is Data Preparation?

Data preparation is the process of cleaning, transforming, and organizing data before analysis. In Tableau, proper data preparation ensures that dashboards and visualizations are accurate and meaningful.

Why Data Preparation Matters

Improves data accuracy
Removes duplicate values
Handles missing data
Prepares datasets for visualization

Before creating charts in Tableau, it is important to ensure the data is structured correctly.

Next Tutorial: Understanding Data Types in Tableau

Understanding Data Types in Tableau

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