Thanks so much for contacting me. I was beginning to lose hope!
The current online version of gene pattern does not permit me to convert IVT (Affymetrix) array CEL files . It only allows ST arrays
Therefore, it is suggested that I download an older version of genepattern in order to find expression file creator somewhere in that package.
On attempting to do open a genepattern dated from 2017 or even earlier, the package downloads to my Macbook and then asks me to register which I duly do and then asks me to re-open gene pattern When I attempt to open gene pattern, it opens a browser page ( firefox) but I get a completely blank screen.
There is no facility to open an older version of genepattern without the internet.
Please note, the only reason I am trying to download genepattern is because I need to use expression file creator to make GCT files from my CEL files and utilise GSEA using my data
Thank you for your kind attention to this issue. I apologise for not being more computer savvy
Sri