How to do one-to-one mapping between gene and probe set with Affymetrix mircoarray data? How to select the best probe value for each gene? or How to summarize multiple probes values of one gene into one representative value?
You can follow my guidance, here: How do I convert Affymetrix ID names to gene names
You will have to modify the above code depending on which Affymetrix array that you are using. It looks like you are using the U133A.
Note that you can summarise expression values across probes targeting the same gene via the limma::avereps function - How to combine expression values of multiple probes for one gene?
Kevin
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version 2.3.6
If you want to learn about microarray analysis, you should look into Bioconductor from R. There are a lot of packages and workflows like arrays.
If you look at the platform entry for the array at NCBI site you should be able to find the annotation for the array. Looks like you are working with https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GPL96
Take a look at the data table.