These are the Oktoberfest ACT and SPR files available at fRO server GRF, just for these who don't have them, along with their correct location inside the GRF.
I will provide no support for these since I didn't make them and the fact that I'm not quite good on client-side.
You only have to download one of two files offered here:
File 1 (data.zip) provides the content extracted from the GRF, while file 2 (oktoberfest.zip) contains an oktoberfest.grf file with the same contents, for easy management and merging with existing GRFs. It's not necessary to download both of them.
