Item Extension Only: If checked, the operation will only apply to the file or folder’s extension and not its name.Item Name Only: If checked, the operation will only apply to the file or folder’s name and not its extension.Enumerate Items: This will add a number, counting upward, to the end of each file that is renamed.For example, if you select a directory that has files within sub-folders, those will not be affected. Exclude Subfolder Items: This excludes items in selected sub-folders from rename operations.Exclude Folders: If this is checked, the operation will only apply to files and not folders.Exclude Files: If this is checked, the operation will only apply to folders and not files.With this checked, all instances of the search term will be replaced. Match All Occurrences: Normally, only the first instance of the search term is replaced (from left to right).For example, the term “dog” would match different results than “Dog.” Case Sensitive: This option makes searches sensitive, whether the letters are capital or lowercase.

Use Regular Expressions: This allows the use of powerful search strings known as regular expressions, which can enable very in-depth or complex search-and-replace operations.

Mass file renamer