Most tools are single player
Reporting platforms, consolidation software, CFO dashboards. Each of them is built for one party, working on its own data, for its own purpose.
In a transaction there are at least three parties looking at the same company. Seller, buyer and advisor each rebuild the analysis separately, in their own model, on their own definitions. That is where the argument about which version is correct begins, and it usually surfaces at the worst possible moment.