How to open CT4S files
Did your computer fail to open a CT4S file? We explain what CT4S files are and recommend software that we know can open or convert your CT4S files.
What is a CT4S file?
The CT4S file extension indicates to your device which app can open the file. However, different programs may use the CT4S file type for different types of data.
While we do not yet describe the CT4S file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about CT4S files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
Various CT4S openers
These apps are known to open certain types of CT4S files. Since many different programs may use CT4S files for different purposes, you may need to try a few of the apps to open your specific CT4S file.