The fourth and last step of the program is the choice of the elements to include in the report. Some elements such as all the data points from the plots, the ability estimates or the test of local independance can take a lot of pages in the report, it is recommended to activate them only if necessary.
After this step, the estimation process begin. While the estimation is running, Excel will not be usable. The time of the estimation depends on the number of subject and item, the model and the computer speed. For a few thousands subject and ten items, the estimation should not take more than ten seconds for binaries items and two or three minutes for five options items on a recent computer.