A new feature has been added to test 231 under the flag FE_0191285_496741_STRING_REPRESENTATION_OF_SIM_FILE. This feature allows test 231 to dynamically allocate all spt results files instead of having a static set of files that can be allocated. Due to the new dynamic nature of test 231 under the FE_0191285_496741_STRING_REPRESENTATION_OF_SIM_FILE flag, the files must now be referenced by string file names instead of by index. This is furthur explained in the training document below.