What is VBA?

Visual Basic for Applications (VBA) is an implementation of Microsoft's Visual Basic, an event driven programming language and associated development environment which is built into most Microsoft Office applications (including Apple Mac OS versions), some other Microsoft applications such as Microsoft MapPoint and Microsoft Visio - a former independent application which was acquired by Microsoft; as well as being at least partially implemented in some other applications such as AutoCAD, WordPerfect and ESRI ArcGIS. It supersedes and expands on the capabilities of earlier application-specific macro programming languages such as Word's WordBasic, and can be used to control almost all aspects of the host application, including manipulating user interface features such as menus and toolbars and working with custom user forms or dialog boxes.