Looks like Chinese or other Eastern chars, no clue.
Try the following:
In your konsole/terminal, in the same folder /home/user/Desktop, type:
./PlaneSthen press Tab twice once, and finally Enter.
EDIT:
Oh, probably the Installer-file was opened with a text-editor.
So do as I suggested above, after you made the file executable by
chmod +x PlaneSagain once Tab and then Enter.