Make a favourite File or Folder always appear first on the list

Do you have a file of folder on your computer that you need to keep sending people, but don’t want to waste time scrolling through File Explorer to find it?
Just add an exclamation mark ! at the beginning of the name and the file or folder will always appear at the top of your list. So if the folder name is Comp-U-Train then change it to !Comp-U-Train.