Which of these is not a valid chart type in Excel?

Excel offers a wide variety of built-in chart types designed for data visualization, including Line, Column, and Pie charts. These are commonly used for displaying trends, comparing categories, and showing parts of a whole

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  Line Chart: Ideal for showing trends over time.

  
  


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  Column Chart: Great for comparing values across categories.

  
  


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  Pie Chart: Perfect for illustrating percentages and proportions.

  
  On the other hand, Network is not a standard chart type in Excel. While you can draw network-style diagrams using SmartArt or shapes and connectors, these are not built-in chart types like Line or Pie