I'm new to Moodle. I installed the latest version and configured it.
Everything was great till I created a course and tried to add an IMS content to it.
It was successful but when I tried to open it, it says "xxx.xxx" is not a valid file type".
it doesn't matter what type it is: MP3, WMV, .... It says the same error message for everything!
I read a document and I checked MultiMedia filter (modules > filters > Manage filters). it has not been enabled. So I enabled the plugin.
Also I checked all related file extensions have been checked and enabled in Setting Tab.
But nothing changed!
What could it be? What's missing?