different between CEL and CHIP files in microarray

Question

[zizigolu]

hi,

may you please tell me what is the difference between CEL and CHIP files in microarrays? i know we can normalize CEL files to downstream analysis then what we can do with CHIP files in the same experiment??? i mean when downloading a microarray experiment i see both of these files in zip file but i cant figure out what the CHIP files are

thank you

[User 59]

Do you mean CHIP or CHP? CHP and CEL files are Affymetrix format files

Answer 1

[h.mon]

CEL are the raw measures, CHP are the processed signals - see here, here and here.

[zizigolu]

thank you, then may you please tell me what can i do with CHP files?