Abstract: A computer-implemented method for scanning data including accessing a reference table including a grid of data cells arranged in columns and rows and containing reference data elements. Each of the rows may relate to one of a plurality of data subjects. The method may also include generating a list of reference subcombinations. The list of reference subcombinations may be generated by designating a primary column for uniquely identifying the data subjects and generating a plurality of first preliminary reference subcombinations. Each of the first preliminary reference subcombinations may include reference data elements gathered from the primary column and a second column of a single row of the reference table. The method may also include accessing a subject file having a plurality of data entries. Each of the data entries may include a plurality of logically-related and delimited subject data elements.