Opening Tbs File
Tbs extension is associated with TuneUp Utilities Boot Screen. You can try to open tbs files with TuneUp Styler.
TuneUp Utilities software is used for changing view of Windows operating system. Tbs is image file which related to this software. This file is zipped because of reducing of the file capacity. If you use additional software called TuneUp Styler, you may change the images.
To get detailed information check the following link.
Opening methods of Tbs file
Links to opening Tbs file