Hi @Trezno, please take a look at our Importing Tutorial! There is a subsection devoted to importing BIOM tables near the bottom. To import your taxonomy, there is an example of that in the Feature Classifier Tutorial, as well as a few examples floating around here on the forum.
I would recommend starting out by spending some time reviewing the QIIME 2 docs, and work your way through the tutorials to become comfortable and familiar with the platform!
Good luck and happy QIIMEing! 