bulkLoad.properties
The bulkLoad.properties file is read when you run the bulk loader from the command line. You can save the file wherever you like so long as you provide the path when you run the command. A sample template file is provided at:
<apriori_install>\ext\analysis-purchasing-module\command-line\bulkLoadTemplate.properties
The bulkLoad.properties file is documented in detail in the "Bulk Costing and Analysis" chapter of the aPriori User Guide.