I need a suggestion for annotating with the gene information a huge file. The file is in the gz format (dimension ~ 120 Mb) after unzip it, the dimension of the file is about 30 Giga and there are ~ 40 000 000 rows. In the file (text format), there are several columns, e.g. chr, start, end, ID sites and other information. Is there a tool that can allow me to easily annotate every sites with the gene information?
Thank a lot. Best regards