Since their introduction in 1993, PivotTables have remained one of Excel’s most powerful tools for summarizing and analyzing large datasets. With just a few clicks, you can transform raw, unstructured ...

Did you know that data analysts spend up to 80% of their time cleaning and preparing data? If you’re nodding in agreement, you’re not alone. The good news is that tools like Power Query in Excel and ...

Microsoft Excel queries retrieve information from tables of data. For example, your business may store staff sales figures in an Access database. To chart the performance of your most productive staff ...