CS1 File - opening and understanding

Did your computer fail to open a CS1 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .CS1 files.

What is a CS1 file?

The CS1 file extension indicates to your device which app can open the file. However, different programs may use the CS1 file type for different types of data.

While we do not yet describe the CS1 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 CS1 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!

How to open CS1 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension CS1 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 20 different CS1 openers which you will find listed below.

Various viewers for this file format

These apps are known to open certain types of CS1 files. Remember, different programs may use CS1 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Free File ViewerFree File ViewerUser submitted
Zoner Photo StudioZoner Photo StudioUser submitted
MAGIX Photo ManagerMAGIX Photo ManagerUser submitted
CyberLink PhotoDirectorCyberLink PhotoDirectorUser submitted
CyberLink MakeupDirectorCyberLink MakeupDirectorUser submitted
DIMIN ViewerDIMIN ViewerUser submitted
Any Video Converter ProfessionalAny Video Converter ProfessionalUser submitted
CEGID Business LineCEGID Business LineUser submitted
FastRawViewerFastRawViewerUser submitted
MAGIX Digital Photo Maker DownloadMAGIX Digital Photo Maker DownloadUser submitted
CegidCegidUser submitted
CSOW ApplicationCSOW ApplicationUser submitted
Photo DataBasePhoto DataBaseUser submitted
progeCAD Professional EnglishprogeCAD Professional EnglishUser submitted
Mouse MagicMouse MagicUser submitted
Circuit ShopCircuit ShopUser submitted
MasterClips MediaPaq BrowserMasterClips MediaPaq BrowserUser submitted
Thrane Fleet Configuration Program for Win32Thrane Fleet Configuration Program for Win32User submitted
ReaViewerReaViewerUser submitted
MAGIX Digital Photo Maker SEMAGIX Digital Photo Maker SEUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

We have not yet verified any programs for Mac that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!
We have not yet verified any web services that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!