FORMAT_PED_PHENO is a C program that takes as input a pedigree/phenotype information file and outputs formatted files that are compatible with (i.e. can be used as input to) the MQLS-XM software of Timothy Thornton and Mary Sara McPeek , the KinInbcoef software of Catherine Bourgain and Qian Zhang, and the KinInbcoefX software of Qian Zhang, Catherine Bourgain, and Mary Sara McPeek.