File converted from V6 to V10, in window 10 system. The below answer from 2010 worked to open it, but being a novice, haven't found how to change the account name. Could use some help in doing so.
- "5.5 files did not have accounts and passwords, only passwords. When converted, the new files have account names and passwords using the original passwords for both. You can open these files by entering the original password in both the account name and password boxes in the log in dialog. After you get the files open, you can change the account names so that you don't expose the password everytime you log in."