Microsoft® Office Excel® 2007 Programming Welcome to the only guidebook series that takes a visual approach to professional-level computer topics. Open the book and you'll discover step-by-step screen shots that demonstrate over 140 key Excel programming techniques, including: Assigning digital signatures to macros Setting properties for a project Assigning values to a variable Changing the properties of an object Formatting a numeric expression Processing a runtime error Saving worksheets to another file Displaying a built-in dialog box Creating custom Ribbon tabs Building and debugging add-ins Extra Apply It   "Apply It" and "Extra" sidebars highlight useful tips High-resolution screen shots demonstrate each task Succinct explanations walk you through step by step Two-page lessons break big topics into bite-sized modules