I work in Business Intelligence (BI) and the joke is that Excel is the best BI tool. My job starts after the new platform has delivered 33% of the functionality

I work in Business Intelligence (BI) and the joke is that Excel is the best BI tool. My job starts after the new platform has delivered 33% of the functionality required. The rest of the functionality is in the Cobol system. Standard practice in BI is for business users to export spreadsheets/CSV from the different systems then use Excel to create the reports they want. No new BI software is going to magically solve the issues with data.