What strategies can you employ to handle large datasets in Excel?

In my experience, after using Power Query to extract, clean, and transform raw data, Power Pivot to create a robust data model and perform advanced calculations, Pivot Tables can then be used to summarize and visualize the data, making it easier to generate insights and reports. By leveraging these tools, we analysts can efficiently manage large datasets, uncover hidden patterns, and drive data-informed decision-making in the industry and beyond. Pivot tables are a powerful tool for summarizing and analyzing large datasets. They allow you to rotate, aggregate, and analyze data from different angles. They also enable you to create custom views and reports, making data analysis more efficient.

In my experience, it reduce the writing of formulas to clean large datasets by just clicking on few buttons which does the work rather faster. Power Query is a powerful data manipulation tool in Excel. It enables you to import, transform, and analyze data from various sources. Power Query can handle large datasets and multiple data sources. It saves time by automating data manipulation tasks, and improves data quality. The repetitive and rigorous process of cleaning a particular dataset every-time can be automated by using Power Query. By using Power Query, you can create data models and perform advanced data analysis.

One thing I have found helpful is that writing VBA scripts for data cleaning and report generation significantly improves efficiency, accuracy, and scalability, reducing report generation time from hours to minutes. My script cleaned data by removing duplicates, filling in missing values, and standardizing date formats. It also created a new worksheet for the monthly report, applying consistent formatting and calculating key metrics. Automating this process with VBA allowed me to focus on strategic tasks like trend analysis and providing actionable insights to management, showcasing VBA's power in enhancing data management efficiency and accuracy.