I need to show these files as downloadable files
1.) Follow this guide: https://www.dokuwiki.org/mime
2.) Upload your files via the media manager.
3.) Add the file manually or via the button "Add Imgaes and other files" to your wiki page.
4.) And you should get this result: http://dw-livedemos.informantum.de/doku.php?id=livedemos:asciifiles:start
Feedback welcome, especially to support other users - Michael Sy.