Hey there!
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I hope this helped! :-)
The predefined formulas in Excel that contain the Boolean functions fall under the Logical Functions category. The Boolean functions consist of "AND", "OR", "XOR", "NOT", "IF", "IFERROR" and "IFNA". When you need to use an Excel Function, you can type the function into the cell. You also need to add the arguments for the function in between brackets. If the function is complex or you are a beginner user, there is a function inputting tool which will help you choose which function you require.
It is okay but you should be able to type up to 60+ words per minute and keep doing that to practice then if you can get into a typing class.
It is Nevaeh backwards hope that helps! :3 and feel free to pm me if you have anymore questions! :3