Illumina expression data, extended format

An example of this format is shown below:
TargetID        MIN_Signal  AVG_Signal  MAX_Signal  NARRAYS  ARRAY_STDEV  BEAD_STDEV  Avg_NBEADS  Detection
GI_10047089-S   73.7        73.7        73.7        1        NaN          3.4         53          0.05669084
GI_10047091-S   312.7       312.7       312.7       1        NaN          11.1        50          0.99604483
All this information is imported into the Workbench. The AVG_Signal is used as the expression measure.

Download a small sample file here:
http://www.clcbio.com/madata/IlluminaBeadChipExtended.txt