Apple Keynote presentation in file view

[hgrobe]

hallo, there seem to be a problem with the presentation of apples keynote files (*.key) - see screenshot:
in list view (left) the folder ttt-xnview shows 4 *.key files, three folders and nothing else.
in the icon view (right) the content of the folder shows those 4 *.key files as folders, additional 2 *.key files with the correct icon and also 4 single files (*.png, *.numbers, *.docx, *.pages). those are not shown in the list view.
Datei_1.key and Datei_2.key can be opened just by double click.
Datei_0, 3, 4, 5 can be opened by "right mouse click menue" choosing explorer.

[xnview]

it seems that Datei_0.key is a folder, and Datei_1.key a file