As mentioned above, you need a server. It's too much for private use, but a small enterprise setup is affordable and more important will be worth it. You have experienced what QlikView can do on your standalone setup, just imagine what it means for the company ...
Also with the server there are some interesting functions for automating data reloading in the application (for example, every night). It's really nice to keep your stuff up to date. In the previous company, we also did a lot with ETL. QlikView is a great tool.
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