> Since there was no redline provided, it took my friend hours to go back and fix all of their errors (there were other formatting changes that had to stay, oth

> Since there was no redline provided, it took my friend hours to go back and fix all of their errors (there were other formatting changes that had to stay, otherwise they could have just reverted to the prior version). Was your friend able to use a program to diff (show all changes between) the two versions, and resolve them? Or was it done by hand?