Process file paths stored in a multi-line list

[ssimop]

A group of file paths, located in various folders, is saved in a multi-line string. I need to massively select these files to handle them accordingly (copy/cut/paste/delete). I wonder whether there exists a technique to select these files in Window explorer and then handle them with explorer general commands. Otherwise, I intend to process each file path separately in a "foreach" quick macro routine.
Many thanks in advance for any advice.