Excel VBA stands for "Excel Visual Basic for Applications." It's a programming language developed by Microsoft that allows users to automate tasks and manipulate data within Excel spreadsheets. VBA enables users to create macros, custom functions, and automate repetitive tasks, enhancing productivity and efficiency in Excel. With VBA, users can write code to perform various operations such as data manipulation, formatting, calculations, interacting with other Office applications, and more, directly within the Excel environment.