This function is most useful in situations where the year, month, and day are supplied by formulas or cell references. Use this function to return the sequential serial number that represents a particular date. For example, if value1 through value7 are the days of the week, CHOOSE returns one of the days when a number between 1 and 7 is used as index_num. Use this function to select one of up to 254 values based on the index number. For example, if the range A1:A3 contains the values 5, 7, and 38, then the formula =MATCH(7,A1:A3,0) returns the number 2, because 7 is the second item in the range. Use this function to search for an item in a range of cells, and then return the relative position of that item in the range. Check out this video about using VLOOKUP. For example, look up an employee's last name by her employee number, or find her phone number by looking up her last name (just like a telephone book). Use this function when you need to find things in a table or a range by row. Use this function when you need to look in a single row or column and find a value from the same position in a second row or column. Here's a video about using the IF function.
Use this function to return one value if a condition is true and another value if it's false. Use this function to add the values in cells. Here are the 10 functions that people read about most.
