File list (Check if you may need any files):
hello world - Copy.txt
hello world - Copy (4) - Copy - Copy.txt
hello world - Copy (5) - Copy.txt
hello world - Copy (3).txt
hello world - Copy - Copy - Copy - Copy.txt
hello world - Copy (2) - Copy - Copy - Copy.txt
hello world - Copy (3) - Copy.txt
hello world - Copy (4).txt
hello world - Copy (4) - Copy.txt
hello world - Copy (7).txt
hello world.txt
hello world - Copy - Copy - Copy.txt
hello world - Copy (2) - Copy - Copy.txt
hello world - Copy (7) - Copy.txt