Fine Tuning LLM

Hi, I’m new to LLMs and have recently started exploting Open Source models. I have doubts in two things:

  1. How do I train my model on Tabular data (All Time Series, Cross Section and Panel).
  2. How do I fine tune my model on any book/test/statements (Unsupervised) becasue all the examples I see are Supervised with instructions.
    Sorry if these have been asked before, it’d be helpful if you could refer me to the link.