About EF Multi File Renamer: EF Multi File Renamer is a versatile tool for easily renaming multiple files or whole directories (including subfolders) in one step. Your renaming tasks can be carried out precisely with very little effort. Select the rule(s) you need for the current task from an extensive set of pre-defined rules, each with its own settings. Complex tasks can combine several rules in the required order which can even be repeated. Multilingual. Shareware [more]