One Cat File Manager features side by side file management, easy multiple file renaming, and customizable looks combine to make the perfect file manager for Windows. It is not wildly different than the built-in Windows Explorer, so it is very quick to get going on it. The most important difference relates to the leftmost 3 icons in the toolbar at the top of the program. These allow you to quickly change between a single file pane and two panes. With one click you have two file explorers side by side that work independently from each other. Copying and moving files around now is a breeze. There's a drop-down menu for frequently viewed file paths.