# PROB: Excel formulas explained

Hey there, fellow Excel enthusiasts! Are you tired of staring at your screen, wondering what all those confusing Excel formulas mean? Fear not, because I am here to break them down for you in a way that even your grandma could understand (ok, maybe not your grandma, but you get the point).
Let's dive right in with one of the most commonly used formulas, the

SUM formula. This one's pretty straightforward - it simply adds up a range of cells. For example, if you wanted to add up all the values in cells A1 through A10, you would use the formula "=SUM(A1:A10)". Easy peasy.
Next up, we have the

AVERAGE formula. As the name suggests, this one calculates the average of a range of cells. So, if you wanted to find the average of cells A1 through A10, you would use the formula "=AVERAGE(A1:A10)". See, I told you these were easy!
Moving right along, let's talk about the

IF formula. This one is a bit more complex, but it's also incredibly useful. The

IF formula allows you to specify a certain condition, and then tells Excel what to do if that condition is met. For example, if you wanted to have Excel display "Pass" in cell B1 if the value in cell A1 is greater than or equal to 70, and "Fail" if the value is less than 70, you would use the formula "=IF(A1>=70,"Pass","Fail")". Make sense?
Ok, let's shift gears a bit and talk about the

VLOOKUP formula. This one is a bit trickier, but it's also incredibly powerful. The

VLOOKUP formula allows you to look up a value in one cell, and then return a corresponding value from another cell. For example, if you had a list of employee names and their salaries in a table, and you wanted to find the salary for a specific employee based on their name, you would use the formula "=VLOOKUP("Employee Name",A1:B10,2,FALSE)". In this case, "Employee Name" would be replaced with the actual name you're looking for, and A1:B10 would be the range of cells that contains the employee names in the first column and their corresponding salaries in the second column.
Last but not least, let's talk about the

CONCATENATE formula. This one's a bit of a mouthful, isn't it? Don't worry, it's not as scary as it sounds. The

CONCATENATE formula allows you to combine two or more strings of text into one cell. For example, if you had the first name and last name of a list of customers in separate columns and you wanted to combine them into one column, you would use the formula "=CONCATENATE(A1," ",B1)". In this case, A1 would be the cell that contains the first name, B1 would be the cell that contains the last name, and the space between the quotation marks would add a space between the two names.
Well, there you have it, folks - five of the most commonly used Excel formulas, explained in plain English. I hope you found this article helpful, and that you're feeling a little more confident in your Excel skills. Just remember, practice makes perfect!