Cutting and Copying Files

when i try to highlight a section of a file the middle doesn’t highlight. makes it a little harder to select for copying
Accapella End Of Eternity 12_5_2018 5_20_21 PM.jpg

You have accidentally switched to the “Multi-tool”. To switch back to the normal “Selection Tool”, press F1, or click the button with the I-beam cursor icon (see: