Expression data formats

File type Suffix Import Export Description
Affymetrix CHP .chp/.psi X   Expression values and annotations, see Affymetrix GeneChip.
Affymetrix pivot/metric .txt/.csv X   Gene-level expression value, see Affymetrix GeneChip.
Affymetrix NetAffx .csv X   Annotations, see Affymetrix GeneChip.
BED .bed   X Expression values, see BED export
CLC .clc X X Rich format including all information
Excel .xls/.xlsx   X All tables and reports
Generic .txt/.csv X   Expression values
Generic .txt/.csv X   Annotations
GEO sample/series .txt/.csv X   Expression values, see GEO (Gene Expression Omnibus)
Illumina .txt X   Expression values and annotations, see Illumina BeadChip
Table CSV .csv   X Samples and experiments, see Generic expression and annotation data file formats
Tab delimited .txt X X Samples and experiments, see Generic expression and annotation data file formats