Thanks for the comments and for jumping in to help. Where I went is to a web page of Microsoft that is for Outlook and I think I searched for maximum file size. They did not say that 2003 and later had a default of 20 gigs. To the contrary they said that file size could be changed to a larger number up to 20 gigs and that some programs will have defaults of 2 gigs max file size depending upon how they were set up. They said I had to go in and change 3 things (MaxFileSize, WarnFIleSize, and DWORD). The path was Run "regedit" ok, expand My Computer in left pane, then HKEY_current_user, then Software, then Policies, Then Office, then 10.0, 11.0, or 12.0 (depending on the version year), then Outlook, then click on PST then right click on MaxFileSize in right pane, then click modify, and change value. Then repeat all for WarnFile Size and DWORD.
You asked about when i view the data files in Outlook what am I seeing. Actually my Outlook will not even stay open. It tries to download mail, gets caught in some iterative loop and shuts down in a few seconds giving an error message (even when I try to cancel the receive downloads). . That's one of my biggest problems. I can not work within Outlook at this time, greatly reducing the flexibility of my response to change what the program is doing.