Build a custom Excel function library in minutes! Learn how to use VBA, create a personal macro workbook, and design a custom ribbon tab.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

How to Use Trig Functions in Excel. Excel has built-in functions for sine and cosine, ... Click the "Formulas" tab and click "Math & Trig" button in the Function Library group.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

You can use Excel's COUNT function to find how many items there are in a table. COUNTIF, on the other hand, delivers the number of items that meet a certain criterion.

How to Use .NET Class Library in Excel VBA. ... Your macro runs, passes the number 2 to the class library function and displays 6, which is the result of the calculation.

Enter your data or use an existing data. Type into the cell where you want to place the result =SERIESSUM(A2,0,2,D2:D4). Press Enter to see the result. The result is 0.504711076. There are two ...

In Excel 2016, Microsoft updated the functions library to bring more accuracy and consistency while remaining compatible with older versions of Excel. This Functions and Formulas class will identify ...

In such cases, Excel's LOOKUP function can be extremely useful. It allows you to search for a value in a range of cells and return a corresponding value from another range.

Excel doesn't have a built-in AVERAGEIF() function, but you can still average values, conditionally.

There are two methods to use the T function in Excel. 1] ... click the Text button and select T from the drop-down menu in the Function Library group. A Function Arguments dialog box will open.