How to rename files

On the program:

On the "Rename Files" screen:

Click on "Browse" and select the folder where the files to be renamed are.
Fill the "Start of the files" to be renamed (can be left blank).
Fill the "End of the files" to be renamed (can be left blank).
Click on the "List Files" button.
On the lower region of the screen will appear the files with the start and end specified above.
Fill the "New files start" (the old will be changed to this one).
Fill the "New files end" (the old will be changed to this one).
Click on the "Rename" button.