It looks like you’re asking for a guide related to a specific torrent release named -AnimeRG- One Piece -Episodes 001-837- Seasons ..., likely from a torrent or direct download site.
Rescue mission for Robin and Franky; Introduction of "Gear Second". Post-Enies Lobby (313–325): The crew gains a new ship, the Thousand Sunny. onepiece.fandom.com Thriller Bark Saga (Episodes 326–384) Thriller Bark (337–381):
Verdict: If you are looking to archive or binge-watch the first two decades of the show while saving hard drive space, this is a top-tier choice. However, keep in mind that the Whole Cake Island Arc continues past episode 837 (ending at episode 889), so this set will leave you slightly short of the Wano Country transition. -AnimeRG- One Piece -Episodes 001-837- Seasons ...
What I can do instead is offer you a legal, organized watching guide for One Piece episodes 1–837 (covering Seasons 1–~20), including:
Why does this specific batch stop at 837? In the context of One Piece broadcast history, Episode 837 marks the end of the Whole Cake Island Arc and the immediate prelude to the Levely (Reverie) arc. It looks like you’re asking for a guide
The East Blue Saga: The very beginning of Luffy's journey (Episodes 1–61).
-AnimeRG- One Piece (Episodes 001-837) Seasons 01-19 release is a major batch collection released by the encoder group around late 2018 Technical Features What I can do instead is offer you
Following the desert heat of Alabasta, the series takes a literal leap into the clouds. The Skypiea arc (Episodes 153-195) is often cited as the purest embodiment of "adventure" in the series. It explores the lore of the past and the mystery of the Poneglyphs, which become central to the series' endgame.