| Gene Group File format: |
| Group1 [tab] group description [tab] tag1,tag3 [tab] Gene1 [tab] Gene2 ...[newline] |
| Group2 [tab] group description [tab] tag5,tag6,tag7 [tab] Gene8 [tab] Gene9 ...[newline] |
| Group3 [tab] group description [tab] tag7,tag9 [tab] Gene3 [tab] Gene6 ...[newline] |
| |