What is the purpose of a "PivotTable" in Excel?

The purpose of a PivotTable in Excel is to summarize and analyze complex data efficiently. PivotTables allow users to extract significant insights from large datasets by enabling them to arrange and reorganize data dynamically. This tool provides the ability to group data by categories, perform calculations, and display the results in a concise format. With PivotTables, users can quickly calculate sums, averages, or other statistics and view data from different perspectives without altering the original dataset. This functionality is particularly useful for making sense of extensive data in reports or analyses, allowing for easy identification of trends and patterns.