It seems that the module, which is a zip-file, can not be expanded. That means that file is not correct or complete. Either the source is wrong or something goes wrong during transport. When I import those modules everything is fine, so the modeler works and the modules are ok.
So either your disk is full, your antivirus is anti everything or your connection is not really well.
I just created a new 7.3 Mendix project and could download them from the appstore without a problem. How did you add the modules?
Regards,
Ronald
Does anyone know if there is a way of getting hold of the mpk files for both the excel importer and excel exporter so that I can load them into the modeller manually?
So tried on a different workstation and seemed to work fine...strange I must have something blocking it.