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What are DDOC files and how to open them

Are you having problems opening a DDOC file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your DDOC files.

What is a DDOC file?

A .DDOC file is a DigiDoc digital signature file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open DDOC files

Important: Different programs may use files with the DDOC file extension for different purposes, so unless you are sure which format your DDOC file is, you may need to try a few different programs.

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

Last updated: February 24, 2023

Various apps that use files with this extension

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

DigiDoc3 ClientDigiDoc3 ClientUser submitted
DigiDoc klientDigiDoc klientUser submitted
DigiDoc4 ClientDigiDoc4 ClientUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DDOC file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.