How to use DATEIF function in Excel Khmer language

Countif function in excel course, in this course you will learn how to effectively use one of Excel's most powerful and versatile functions, COUNTIF, to manage and analyze data efficiently. The course begins with an introduction to the COUNTIF function, explaining its purpose and syntax for counting cells that meet specific criteria. You’ll explore various real-world applications, such as counting occurrences of certain values, filtering data, and applying conditional counting in different data sets. We'll guide you through step-by-step examples of how to set up COUNTIF formulas, including how to use comparison operators, text strings, and wildcard characters. Additionally, you'll learn how to work with COUNTIF for both numbers and text, count blank or non-blank cells, and handle case-sensitive data. The course will also cover troubleshooting common errors and provide tips for more advanced use cases, like using COUNTIF with multiple criteria (COUNTIFS).