They rarely use tools like "Excel" in Thailand. That would make it too easy for people to see the discrepancies.
No Excel spreadsheet needed to describe the difference between the O and O-A visas being discussed. The only difference between the O and O-A that effects retired expats is that the O-A started requiring health insurance (3M THB) effective Oct 1, 2021, and the O doesn't require health insurance YET. With that exception, these two visa classifications are inherently the same.