php files not looking right

hi, i must have downloaded my php files in binary format or something, but now, instead of readable carriage returns after each line of code, theres a 'box' and then no carriage return. so the whole file is on one line. then other files have an extra carriage return between lines. could i remove these with php and regular expressions?? if so, what should i be searching for, for the 'boxes' if not, can word or wordpad, or anything else do it. i could go through every file and delete the box and add a carriage return, but that would take ages