Data validation prevents errors by controlling what users can enter in cells. This guide teaches you how to create robust validation rules for error-free spreadsheets.
Why Data Validation Matters
Data validation:
Prevents errors: Stops invalid entries before they happen
Ensures consistency: Standardizes data formats
Guides users: Provides clear input instructions
Saves time: Reduces data cleaning work
Improves quality: Maintains data integrity
Basic Data Validation Types
List Validation (Dropdown)
Most common validation type.
From Range
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