The file 'SKADIS 12 Precision File Holder 3D Printer Model' is (stl) file type, size is 103.5KB.
The original by mar4711 is great and has a nice round recession for the files to be held, as you can see on the underside of the stl.
I rotated the hook 90 degrees, added 2 more, and added some supports so it cant rotate forward out of the holes
My additions to the model are a little messy but it prints fine and fits snug. Holds 12 small files.
The picture shows 11 files but I have updated the STL
I printed top side down with no supports
SKADIS_horizontal_12_file_holder.stl | 393.3KB |