As far as I know, all versions of Quicken can export its data in a CSV (Comma Separated Value).
That's correct and the old Quicken did offer CSV but each was specifically for something or other, none of which was Excel. However, it's now moot as the old Quicken won't work with Big Sur. Since I'm back to the starting line and facing a learning curve, whatever I do, I'm now considering the creation of a database in Excel.