Which of the following is NOT a common data visualization tool or library used in Data Science?

Tableau
Seaborn
Power BI
Excel

The correct answer is D. Excel.

Excel is a spreadsheet program that is not specifically designed for data visualization. It can be used to create simple visualizations, but it does not have the same capabilities as other data visualization tools.

Tableau is a data visualization software that is designed to be easy to use and create professional-looking visualizations. It has a wide range of features and options, making it a popular choice for data scientists.

Seaborn is a Python library that is used for data visualization. It is based on Matplotlib, but it provides a more user-friendly interface. Seaborn is often used in conjunction with other Python libraries, such as Pandas and NumPy.

Power BI is a business intelligence tool that is used to create interactive dashboards and reports. It can be used to visualize data from a variety of sources, including Excel, SQL Server, and Salesforce.

In conclusion, Excel is not a common data visualization tool or library used in Data Science. Tableau, Seaborn, and Power BI are all more popular choices.