Band format is a free-form format used in linguistics for lexical data.  

The following is  from a google search.

http://billposer.org/Linguistics/Computation/LectureNotes/ParsingLexica.html

I have used my own version of this format for a lexicon.  If you wish, I can spend more time explaining how ti did it.

Basically, each "field" is marked by a dot and one or more letters.  Two dots mark the beginning of a record.

..hw  means "headword"  (use anything you want)
.d    could mean date
.ge  could mean "english gloss"
.gd  could mean "dutch gloss"
.p    could mean part of speech.

Two spaces preceed each .X 

New categories can be made up on the fly.

Alan Davis

On Sun, Dec 25, 2011 at 5:57 PM, Thien-Thi Nguyen <ttn@gnuvola.org> wrote:
() Soichi Ishida <soujiro0725@gmail.com>
() Mon, 26 Dec 2011 10:47:58 +0900

  I have totally forgotten EBD :)

  What if I have more than one table?

Then your forgetfulness is ideal.