MixFla program package for premixed flames. The package -MIXFLA- consists of 3 parts: -MIXINP- for input and preprocessing of the data and storage in a linkfile -STORAG-, -MIXRUN- (reading the linkfile -STORAG-) for the integration of the conservation equations and output of the results, and then -MIXMEC- for the analysis of the reaction mechanism (local and integral reaction path analysis, elimination of unimportant species). ..