The input file you specify when creating a custom XML conversion definition can be any type. If you plan to use the custom XML conversion definition to convert other non-XML files of this type, the input file should be representative of that broader class of files - files with the same extension (.txt
, for example), encoding, numbers and types of regions, and so on. You can always fine-tune the custom XML conversion definition to accommodate characteristics that are not embodied in the input file, but as a general rule, use a file that is as close to others of its type as possible.