You can save more than one renaming rules in one file. We called it a Rule File and it can save as an file extension
as 'ren' You can load that rule file and apply it on selected group of files. All rules saved in a file would be apply one by one.
So purpose of saving rules in a file is to apply more than one rule simultaneously. You can also apply rule file to any groups of files or folder from command prompt. When you apply a rule file from command prompt, you do not need to open File Renamer. So you can also scheduling your daily renaming task using command prompt.
Select the desired settings in any of renaming rule tab to set one renaming rule.
After that press "Add rule" button to save that as a rule. Please see 3 images below where we have added 3 different rules.
Now Press 'Manage Rules' button on main screen and it will open Managing Rules Dialog Box. Here after adding the rules now you can save these renaming rules in one rule file. You can also change order of these rules or delete selected rules.
File would be save with file extension "ren". Here we are saving rule file as 'new.ren'
Now you can apply this list of rules simultaneously to files. All you need to select that rule (Advance Tab) and apply it on selected files. Also you can just double click the file and it would open in File Renamer with rule file selected.
This way you do not need to select set of rules one by one to apply on your files. It takes pain out of repeated task. All you need to do is save all rules in one rule file.