Grandma's Taxes Lightbulb Puzzle

This puzzle involves hidden files. These are files that your PC's file system detects as hidden, usually distinquished by putting a period at the beginning of the file name. EX: ".hidden.txt". Viewing hidden files depends on your file browser/operating system, but I'll provide some tutorials

Windows:
There should be 4 tabs at the top of your file browser, "File" "Home" "Share" "View"
Click "View"
Check the box next to "Hidden items"
A greyed out folder titled "JUNK DRAWER" will appear

MacOS:
Use the following keyboard shortcut: COMMAND+SHIFT+. (period)
A greyed out folder titled "JUNK DRAWER" will appear

Linux:
Depends on distro for GUI based file browsers, but hidden files can be located by typing "ls -a" in the terminal