Suppose you want replace the phrase Alice's adventures in Wonderland with the entire file that contains Carroll's novel. Probably you don't want to do this by hand, what you need is a command that will do it for you. Click the Add button, select Search and Replace Mode and insert the following strings: Alice's adventure in Wonderland in the search mini-editor and the string [$loadfile:/the-path-to-my-folder/my-folder/my-file$] in the replacement mini-editor. Click OK. When you come back to the KFileReplace main window, toggle the Command action button that enables the commands, and start the replacement process. There are also other commands, see Appendix B, KFileReplace commands for a list of all of them.