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Code written in VBA is compiled [6] to Microsoft P-Code (pseudo-code), a proprietary intermediate language, which the host applications (Access, Excel, Word, Outlook, and PowerPoint) store as a separate stream in COM Structured Storage files (e.g., .doc or .xls) independent of the document streams.
VBA code interacts with the spreadsheet through the Excel Object Model, [28] a vocabulary identifying spreadsheet objects, and a set of supplied functions or methods that enable reading and writing to the spreadsheet and interaction with its users (for example, through custom toolbars or command bars and message boxes).
Like VBA, code written for VSTO is executed by a separate virtual machine (the CLR) which is hosted inside the Microsoft Office applications. However, unlike VBA, where the code is stored in the document file itself, programs written with VSTO are stored in separate CLI assemblies which are associated with the documents by means of custom properties.
A parameterized macro is a macro that is able to insert given objects into its expansion. This gives the macro some of the power of a function . As a simple example, in the C programming language , this is a typical macro that is not a parameterized macro, i.e., a parameterless macro :
Microsoft Excel uses dedicated file formats that are not part of OOXML, and use the following extensions:.xlsb – Excel binary worksheet (BIFF12).xla – Excel add-in that can contain macros.xlam – Excel macro-enabled add-in.xll – Excel XLL add-in; a form of DLL-based add-in [1].xlw – Excel work space; previously known as "workbook"
It was replaced by Visual Basic for Applications (VBA) when Word 97 was released. [1] Contrarily to VBA, WordBasic was not object-oriented but consisted of a flat list of approximately 900 commands. [2]
VBA still supports flow control using the keyword "goto" (often called Spaghetti code in the jargon) but is mostly designed for Procedural programming. VBA supports procedural and object orientated programming, event driven programming and possible other paradigms. Goto can lead to Spaghetti code but they are not the same thing.
Visual Basic is a name for a family of programming languages from Microsoft. It may refer to: Visual Basic (.NET), the current version of Visual Basic launched in 2002 which runs on .NET