I read in a tutorial that it was possible for PHP to make gifs non-HTML file formats too. This got me thinking. Is it possible for PHP to output the contents of, say a mySQL database, and put them into a VCF file format to be dynamically downloaded from the server? I would like to see this work somehow, but how would I go about starting a project like this? Where can I find sources relating to creation of VCF file formats and creating files in PHP?