Quote Originally Posted by mchara View Post
The QAxWidget with setControl to a file generates warnings and says that an object doesn't support automation and fails to activate it.
Any ideas why it happens?
Indeed weird, try passing "Excel.Application" then. And check out the "webbrowser" example - it uses the approach directly to embed a web browser and call its functions. You can use it as a test bed (even from within Designer), you just might need to remove the dynamicCall() line.

Sorry I can't test it by myself but I don't have Excel and I'm currently working on Linux and don't want to stop to reboot the machine