How to export or get excel sheet for upregulated and downregulated genes in volcano plot.
I think we're going to need a bit more information about what you're doing. How was your volcano plot generated? Do you have a table of expression values in R? If so, write.table is your friend: https://stackoverflow.com/questions/18514694/how-to-save-a-data-frame-in-a-txt-or-excel-file-separated-by-columns