What are the result files for an Affymetrix array? Which one should I use for which analysis program?
For each array experiment that is performed using the Affymetrix GeneChip® arrays, six files are generated (*.DAT, *.CEL, *.CHP, *.ARR, *.RPT, *.txt). Each file will be named identically except for the extension. The naming convention is as follows: Project ID number_Submission ID nubmer_Genome ID number_sample name_chip type, i.e. 1234_0001_12123_CX24R_HU133+2.* In the case of pairwise comparisons in the Affymetrix Microarray Suite v5.0, the comparison files will follow the following naming convention: Sample_base_Sample_exp.txt All data analyses will be given as *.txt files.