"Navigate to a file" means to just, go to that file.
Say your told to navigate to "Microsoft Office".
You can type in the address, in the address bar, C:\Program Files\Microsoft Office
Double click My Computer
Double click Local Disc (C:)
Double click Program Files
Double click the Microsoft Office
That's how you "navigate" to a file.
Windows Explorer is what you're using, to navigate to the file.
but am having difficulty finding some of them.
Is your computer set to show hidden files?How to see hidden files in Windows