In cell B1, enter "Random Password Generator" or whatever title you wish for your project. Starting in cell B3 and going down, enter the labels "Length", "Uppercase letters", "Lowercase letters ...

Every password manager worth its salt includes a password generator component, so you don't have to create those random passwords yourself. However, not all password generators are the same.

Make a Password Generator in Google Sheets. I'm an Excel whiz, and I have been since before Google Sheets existed. Maybe even since before Google existed!