Explore these results from Bing
SIXT rent a car | Premium Car Rental & Top Deals Worldwide
SITX File - What is a .sitx file and how do I open it? - FileInfo.com
Stuffit
SITX File: How to open SITX file (and what it is)
archiving - Opening a SITX file on Windows 10 - Super User
Stuffit
How to Open and Migrate Your Old StuffIt Archives
SITX file extension - What is a .SITX format, and how to open it?
.sitx file — 7-Zip can't open it. What can? - Super User
SITX - StuffIt X Archive File Format