How to open CDOC files

Did your computer fail to open a CDOC file? We explain what CDOC files are and recommend software that we know can open or convert your CDOC files.

What is a CDOC file?

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

While we do not yet describe the CDOC 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 CDOC 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!

Generic CDOC

These apps are known to open certain types of CDOC files. Since many different programs may use CDOC files for different purposes, you may need to try a few of the apps to open your specific CDOC file.

DigiDoc3 ClientDigiDoc3 ClientUser submitted
ClickerClickerUser submitted
DigiDoc3 CryptoDigiDoc3 CryptoUser submitted
DigiDoc3 kruptoDigiDoc3 kruptoUser 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 verified any programs that we know for certain can work with CDOC-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with CDOC-files. If you know one, please use the Suggest link below and tell us about it!