When I do
And open the folder, there are no files in it. The only way I can access those is by opening the folder without any QGIS involved, click on the files and open them in a browser, then it shows me the symbol, but after hours of trying I didn't find any possibility to import them into QGIS.
I only can open them in the browser-window, but not add them as a layer. When right-clicking on properties it says under the headline "Meta Data": Error.
It would be very nice if someone could help me. I may try to figure out the problem more extensive.