You cannot simply read .SC2Replay files with a text editor. You need specific libraries to "prepare" the binary data into JSON, CSV, or Tensors.
(and Heroes of the Storm ), often appearing as a stuck loading bar or a slow-crawling download. This process typically triggers when the game client detects a mismatch between your local files and the server, or when it needs to fetch small, specific data packets like voice lines or localization updates. Common Fixes for the "Preparing Game Data" Loop starcraft 2 preparing game data link