Is there an easier way to create a DTD file? Are there tools that can help me do so?

Egil Ølberg

(From Egil Ølberg) Yes, the tool I use can be downloaded at:

(From Benoit Xhenseval) Yes there are. It is also recommended to use some tools as the DTDs will evolve into XML Schema soon and those tools have early suuport for schemas.

Here are 2 recommended tools: