Learn how to add and remove Primary Keys from an Access database table. The primary key's purpose is to promptly associate data from multiple tables and combine that data.

Adding a new column to either an entire spreadsheet or just a portion is an easy thing to do in Microsoft Excel. Here's how.

If the natural data can't support the sorting and filtering requirements, you might need to add an index column and sort by it.

Power BI quick measures can return a simple running total and a year-to-date total with little effort on your part.