Hi I am a windows 10 pro user and can't see many files that my Mac colleagues have placed in dropbox because of illegal characters (for windows). I can't sync them properly with my PC because I keep getting errors about invalid filenames. Does anyone know of a clean way to change multiple file names or how to remove invalid characters in bulk? I thought of downloading the files to my pc and running a utility but there is 2tb of data and the transfer back and forth would take days if not weeks. Appreciate any advice.