I have been using Quicken since early 1990's and have continually upgraded and now run Reckon Accounts Personal Plus 2016. Over the years accounts have been opened & closed and I thought it would be a good idea to "clean up" the system data. If I just delete old transactions in accounts I am still using, I think this will affect my current balances. Is there some other way like changing the Account Opening Balance date from say 30 June 2000 to 30 June 2008, which would get rid of all those very old transactions prior to the latter date, but would keep my history for the last 7 years for taxation purposes? Or should I not worry about it?