This summary is not the rule. The rule text controls.
When you appeal a case in Indiana, everything that happened in the trial court or agency becomes part of what's called the Record on Appeal. This includes the Clerk's Record, which has documents like the case file, orders, and filings, plus everything else that happened during the case, whether or not someone wrote it down in a transcript or officially sent it to the appeals court.
This means the appeals court can look at the whole history of your case, not just the parts that got typed up. If there's a dispute about what should be included or how the record gets put together, the appeals court has the power to step in and issue an order to make sure the rules are followed.
This rule also gets rid of something called the "Record of Proceedings," which used to be a separate way of organizing case materials for an appeal. Now everything falls under the single Record on Appeal described here.