摘要：Analysis of variance (ANOVA) is a usual way for analysing experiments. However, depending on the design and/or the analysis scheme, it can b. a hard task. ExpDes, acronym for Experimental Designs, is a package that intends to turn such task easier. Devoted to fixed models and b.lanced experiments (no missing data), ExpDes allows user to deal with additional treatments in a single run, several experiment designs and exhib.ts standard and easy-to-interpret outputs. It was developed at the Exact Sciences Institute of the Federal University of Alfenas, b.azil. Stab.e versions of package ExpDes are availab.e on CRAN (Comprehensive R Archive Network) since 2012. b.sed on users’ feedb.ck, the package was used to illustrate graduation and post-graduation classes and to carry out data analysis, in b.azil and many other countries. Package ExpDes differs from the other R tools in its easiness in use and cleanliness of output.