How to open CI4 files
Did your computer fail to open a CI4 file? We explain what CI4 files are and recommend software that we know can open or convert your CI4 files.
What is a CI4 file?
The CI4 file extension indicates to your device which app can open the file. However, different programs may use the CI4 file type for different types of data.
While we do not yet describe the CI4 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 CI4 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 CI4 openers
These apps are known to open certain types of CI4 files. Since many different programs may use CI4 files for different purposes, you may need to try a few of the apps to open your specific CI4 file.