Request a file from OSSLT of the specific assesssment/test you wish to import. This file needs to be uploaded to the file manager within the SIS. 

Select the file you uploaded to the file manager, click on get fields.

Choose the test type and year (if these have not been setup you will need to go to board >setup> assessments)

Select the fields from the file. (OEN is a mandatory field, Student # is not needed)

Import the results file.