A program named EXACON is presented which performs exact cellwise analyses of two-way contingency tables. EXACON is written in FORTRAN 77 and is interactive. One-tailed probabilities are computed for the observed frequency of each cell according to two different probability models, one being Fisher's exact test for a 2 x 2 table. Despite the fact that exact probabilities are computed, EXACON does not demand much computer time even for fairly large samples.
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