BLT

BLT is a text-based file format used to record (voting) 'preference profiles' in STV elections. Highland Council's election software uses it and HRC election results are made publicly available in it. In December 2021, EMD wrote a C program to read a BLT file and determine the winner of a single-seat (aka AV) election, given below (to copy it: select Read/Edit source, above). Other than that the 'T' seems likely to stand for 'table', the meaning of the acronym 'BLT' is not known.