File format:

This help page provides information about the file format for Affymetrix Probe Annotation file

The following are the list of columns allowed on the file :

Column HeadingWhat to store in each columnColumn - Required or Optional
Probe_Set_IDProbe-set nameRequired
Gene_nameThe gene name that corresponds to the probe-setOptional

A sample file is as following:

Probe_Set_IDGene_name
1606368_s_atQ5I6Y3
1606427_atVvi.11550
1606428_at 

If there is no known gene name corresponding to the probe_set_id, just leave the space blank.

File name:

Please name your files using only the following characters "a–z", "A–Z", "0–9" and "_". Connect parts of the name with underscores.