[BioC] Single channel (numerical intensities) data import into BioConductor

[Dozmorov, Mikhail G. (HSC)]

We receive microarray data from processing facility in a simple format o
background subtracted intensities, here's an example, tab delimited:

Gene ID	C1860gu	C1775gu	C1777gu
AA278251	100.825641	82.30144928	222.4144928
AA401404	383.6702703	374.1666667	342.3405797
AA454191	100.7403727	175.2884199	135.4404762
AA460836	343.9164875	366.684058	351.8411658
AA723761	445.059587	451.999359	355.5185897
AA902654	400.1301282	431.4055556	367.1327381
AA905415	200.9855072	208.0207576	218.5183983

Thus, for each array (C2860gu,...) we have corresponding gene expression
data. How to import this data into ESET object for further handling?
Thank you!