GIS files

mapexport command will generate the dbf, idx, prj, shp, and shx. The others though, don't know how you get those, they're certainly not required to make use

The xml file is the metadata, perhaps the most important information to attach to GIS data.

ArcMap AutoCAD Map will create this file for you, but it needs to be populated with job specific information.

Search the help files for the term "metadata". There is an option to export to .xml

It may be important, but then so is the .prj, but it is not required. Shp, shx, dbf.. anything else may be important, but they are still optional.

I meant to direct that comment to the original question, not to be argumentative.

I do agree with what you are saying..in order to display the shape file on the screen, there are only a handful of files required. The .proj and .xml files significantly enhance the data.

We always make an effort to make it abundantly clear what units, coordinate system, basis of elevation, accuracy, intended purpose, etc. applies to the data being distributed. Traditionally this was done via. a transmittal letter to the end user.

With GIS data there may be significantly more end users. It is very convenient that we can generate this information as a package of files that is included every time the data is disseminated.

Generating metadata can be time consuming. Everyone must make the decision if they feel that it is in their best interest to take the time to do this without being compensated.