Backing up a quiz file

In order to enable the back up of a quiz file, select the item Options from the Tools menu, and check the item "Always make a back-up of quiz file", as shown in figure below:

Every time the quiz file (.XQZ) is saved, before apply the last changes of the quiz, a copy of existing file is done, with the following name:

quizfilaname_YYYYMMDD_HHmmSS.qbk

where :

·     "quizfilename" is the quiz file name .XQZ,

·     YYYY = year

·     MM = month

·     DD = day

·     HH = hours

·     mm = minutes

·     SS = seconds

In order to restore the state of the quiz at a certain date, the back up file can be opened with the program, as a normal quiz file .QXZ, selecting the file extension .QBK, as shown in dialog window below:

In this case, working with a back up quiz file, when the item "Save" is selected from File menu, a dialog window ask you if save the changes in the back up or replace the current quiz file (.XQZ), restoring the back up.