Spreadsheets are an indispensable tool for marketing professionals, enabling them to effectively manage and analyze data. However, maintaining the accuracy and cleanliness of these spreadsheets can be challenging, particularly when multiple parties are involved in contributing data. To address this issue, marketing analysts can leverage the power of data validation and regular expressions. Data validation and regular expressions are robust tools that enable marketing analysts to ensure the integrity and reliability of the data they work with. By implementing data validation techniques, analysts can identify and rectify errors or inconsistencies in the data. This process is crucial as having clean and accurate data is only one part of the equation. Once the data has been cleaned and validated, the next step is to visualize it through the creation of charts. Visualizing data through charts allows marketing professionals to gain valuable insights and make informed decisions. Throughout this course, participants will have the opportunity to explore a dataset that encompasses the types of information commonly encountered in the realm of digital marketing. In addition to data cleaning and visualization, this course will cover various techniques to enhance data analysis. Participants will learn how to identify errors in metrics using data validation, employ regular expressions to aggregate campaign metrics, and build charts to analyze campaign performance. By applying these techniques, marketing professionals will be equipped with the skills necessary to derive meaningful insights from their data. Furthermore, participants will have the opportunity to apply their newfound knowledge and skills to construct a dynamic dashboard. This dashboard will serve as a comprehensive tool for monitoring and analyzing marketing campaigns, providing a holistic view of performance metrics and facilitating data-driven decision-making. In summary, this course offers marketing professionals the opportunity to enhance their spreadsheet management skills by focusing on data cleaning, visualization, and analysis. By mastering these techniques, participants will be able to effectively manage and analyze marketing data, ultimately driving better results for their organizations.