Make sure the folder the AppData is in, Prefbly the User folder, has the "Show Hidden Files and Folders" radio button checked.
On the top bar of the folder, under Organize, click on Folder and Search Options. On the menu that then opens up, click on the View tab. Scroll down to find the Hidden Files and Folders heading. Under that are two choices. Don't Show Hidden Files, Folders, and Drives, and Show Hidden Files, Folders, and Drives. Click the choice of Show Hidden etc etc. Click OK at the bottom to get back out of the menus.
THEN go looking where they told you.
And you DO realize that the part that specifies <Your Logon> means that it is the logon name you use, not he actual words Your Logon, yes? On mine it''s Pat. So mine is C:\Users\Pat\AppData\Roaming\Microsoft\FSX. On Yours it is whatever name you use for the account you log onto the computer with. It might be Fred, or Major Tom, or whatever.
Does this help any?
Pat☺