Can't find Library.itl file when moving Itunes
I am transferring (or trying to) my ITunes library from Wins7 computer to my Wins10 computer. I followed the Apple instructions for this, copying to external drive, then to the new computer. (both have latest ITunes version as of 1/16/18). ISSUE: all the files are visible, including library.itl, in file Explorer window, but when I hold down Shift key and open ITunes, and window opens for "select new library", ONLY the "yellow files" show up, none of the light blue or white files. No "Library.itl" file... I've tried several times, reloaded the files, nothing changes. Have searched the web and see nothing about this error. Thanks!