The Bible Support utility, e-Sword Tab Renamer.
This will install into its own folder, because it has additional files which enable it to be able to keep track of what you are asking it to do.
You will find the file in C:\Program Files (x86)\e-Sword Tab Renamer and the file you are looking for is e-Sword Tab Rename.exe
If you want to change the name of the file, which you have downloaded from Bible Support, exit e-Sword, use File Explorer, browse to the file, and rename the filename manually. When you next reload e-Sword the tabs will appear in filename order.
While any pane displaying the books is open, if you hover the cursor over the tab, then the related information about that book will appear in a pop-over. If you would like to modify the information in the tab, yourself, you can use the Bible Support utility, e-Sword Tab Renamer.
Please read the information about this e-Sword utility, provided by Josh Bond. The original designer of the Bible Support e-Sword Tab Renamer utility is Raymond Barone.