What is a tls file and how do I open a tls file?
TLS is the extension used by a custom Windows Tune Styler logon screen, a desktop customization program included with TuneUp Utilities. It may include a background image as well as custom fonts and buttons, can overrides the default Windows startup screen when applied.
Relevant tls file links:How to open tls file on Youtube
How to open tls file on Wikipedia
How to open tls file on Microsoft.com