Reference Manual

Hello,
Is there a project file that accompanies the reference manual?

Which reference manual?

DaVinci Resolve.pdf that comes with the program and has 3016 pages and a lot of examples inside, so i guess there is some project file(s) for this

There's no sample files per se with the manual, but the Training Guides at this link do have sample files available:

https://www.blackmagicdesign.com/produc ... e/training

The major tutorial vendors (Ripple Training, MixingLight, FXPHD) all have online courses and do provide various files with their training. Note all of them are authorized Blackmagic trainers, so they follow a well-structured plan that's perfect for beginners.