I'm trying to use the R&Bioconductor and Bioconductor from python to analyze raw data (cel.gz files) from GEO because the sort.txt.data of gene&counts matrix doesn't include the genes I am interested in. So I figured I probably needed to process the raw data in case txt file missing the genes. However, the code I followed only got me to the quality control of all samples. Can anyone suggest where to download the gene annotation for my samples? and suggest some good tools or pipeline or papers I can follow for the geo raw data analysis. I am pretty new to the GEO analysis. Thank you so much !