Our proprietary QCK format is intended for secure local storage of tests. This format can contain not only all known question types, but also all kinds of comments, tips and >20 fields for metadata. Useful if you convert a rich test to another format and information is lost. If you first save in the QCK format, all information will be retained. Useful if you want to make another export of the data in the future. The file is internally encrypted and can be provided with a password.

You can write to and from this file from the QCK QuestionConverter.

Resources are stored separately in a subfolder of the folder where the QCK file is located, but can also be included in the QCK file if desired.