ID column when importing data from MS project file


I’ve found that the result data from importing MS project file shows different IDs with the data the viewer(for viewing .mpp files) is showing. In most of viewers, the IDs of the tasks are in numeric order but when importing from MS project file in dhtmlxgantt, it seems that it has random numbers for task IDs.
Can I get more information about the import function such as how you handle the properties when converting the data?

Hello Birdie,
Usually, the ID parameter is obtained from the imported file:

In the following snippet, you can try importing the file and check the IDs and other parameters in the web console: