Excel Custom Functions
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Excel Custom Functions
Excel users are used to build custom functions—called user-defined functions (UDFs)—in Windows and Mac versions of the application. UDFs can be simply written in Visual Basic Editor (VBE) using the Visual Basic for Applications (VBA) language.UDFs are not portable to Excel Online and Excel for iOS due to the missing VBA capability on these platforms. Therefore, Microsoft has improved the JavaScript API that was already being used for Office add-in development to allow developers to create custom functions attached to the add-ins. These custom functions can be used like any other native functions or UDFs in Excel. While Microsoft calls these functions JavaScript custom functions, they can also be called JavaScript UDFs, which is the name used in this book.This book shows the process of creating JavaScript UDFs in Excel in Developer Preview for Office Insider program subscribers.
Excel Custom Functions Straight to the Point
Author: MrExcel's Holy Macro! Books
language: en
Publisher: Packt Publishing Ltd
Release Date: 2024-12-12
Create advanced Excel custom functions with JavaScript, integrating web services, asynchronous operations, and streaming data in a practical guide that empowers developers to create powerful Office Add-ins. Key Features Tools and setup required for building custom Excel functions. Integration of web services for real-time data processing. Techniques for debugging and optimizing Excel add-ins. Book DescriptionThis book is a step-by-step guide for developers to build custom Excel functions with JavaScript. Beginning with the installation of tools like Node.js and Git, it explores setting up Microsoft Script Lab, building add-ins, and understanding essential file structures. Readers will learn to create and debug custom functions, handle asynchronous data, and integrate streaming web services. The book progresses through practical examples, teaching developers to fetch data from APIs and use advanced techniques like batching and streaming for real-time Excel updates. It demystifies the JSON manifest, JavaScript function files, and debugging processes essential for successful add-in development. By the end, readers will have a robust understanding of creating custom Excel functions, optimizing workflows, and integrating dynamic web services. Whether you're an Excel enthusiast or an experienced developer, this book offers a practical, engaging pathway to enhance Excel functionality through coding.What you will learn Build custom Excel functions using JavaScript. Install and use Microsoft Script Lab effectively. Work with Node.js, Git, and development tools. Create asynchronous functions for Excel Online. Fetch and integrate data from web services. Debug, test, and optimize custom Excel functions. Who this book is for Developers with basic JavaScript knowledge looking to expand Excel functionality, data analysts seeking automation, and Office Add-in enthusiasts will find this book helpful. Familiarity with Excel and JavaScript basics is recommended.
Microsoft Excel Functions & Formulas
Author: Bernd Held
language: en
Publisher: Wordware Publishing, Inc.
Release Date: 2006-09-05
Easy to use and equipped with a variety of functions, Microsoft Excel is the tool of choice when it comes to crunching numbers, building charts, and analyzing tables. But most users only scratch the surface of the program’s functionality, especially the built-in formulas designed to make everyday operations and real-world tasks more efficient. Microsoft Excel Functions & Formulas demonstrates the secrets of Excel functions through the use of practical and useful examples in a quick reference format. Topics include logical, text, date and time, basic statistical, mathematical, financial, database, and lookup and reference functions as well as conditional formatting with formulas, array formulas, and user-defined functions. This book’s extensive examples make it an excellent tutorial for all Excel users who want to understand, create, and apply formulas. Intermediate and advanced users will find Microsoft Excel Functions & Formulas an excellent reference to many of the program’s advanced formulas and functions.