Hi, while investigating a problem folder i enable the hidden files to be viewed in all folders a while back. well recently i had noticed these weird files that were exact duplicates of files in most of my folders except that they had a "._" prefix. i have been deleting them because when i tried to open them they were unreadable. i just now realized that they are the hidden files that i made visible. am i messing up my files by deleting them? i am still able to open the original normal file and everything seems fine. i appreciate anyone's info.