How create datafile from hand that GNUcash can understand/import?

[seberino at spawar.navy.mil]

I want to put lots of GNUcash data into a text file
that GNUcash can then import if possible.

(I want to avoid inputting tons of data with mouse and
the GNUcash GUI interface.)

Is the Quicken file format the way to go? Is it ASCII?

If there is some simpler format GNUcash can understand
such as comma delimited or XML then I'd consider that.

Any and all advice & comments welcome.

Thanks!

Chris