Export a QlikView Ajax Doc to excel programmatically
If the above doesn't solve for what you're trying to do, your best bet would be to have the developer of the application export the data to a .txt file (using the Qlik View load script) that you can then read into your application.
To Nicole's other point, really need further information on the use case you are attempting to solve in order to determine if there may be other ways to do things. One other that came to mind would be to create QVD files in the app from which you are trying to get the data such that you can use those QVD files in the other apps rather than trying to export/import etc.
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