This summary is not the rule. The rule text controls.
When a case involves a huge stack of documents, like thousands of pages of records or receipts, nobody expects a jury to sit there and read through all of it in court. Instead, someone can create a chart, summary, or calculation that pulls out the key information and presents it in an easier format. This saves time and makes the evidence easier to understand.
But there's a catch. Before using a summary like this, the side presenting it has to let the other side look at the original documents (or copies of them). This has to happen at a reasonable time and place, giving the other side a real chance to check the work and make sure the summary is accurate and fair.
The judge also has the power to step in and order that the actual original documents be brought to court, even if a summary is being used. This gives everyone a way to double check that the summary matches what the real records actually say.
