search for: 0000280

...;." !! This seems like Excel when it is trying to guess what I am really ment (and turning 1/1/1 into 1-1-2001). Furthermore, I found the following quite strange as well: > gomat2<-read.delim2("test.txt",header=FALSE) > gomat2[1,1:2] V1 V2 1 GO:0000051 GO:0000280 > as.character(gomat2[1,1:2]) [1] "8" "2" > as.character(gomat2[1,1]) [1] "GO:0000051" I have found a way to work around it, but I am wandering what's happening.... The tab-delimited file look like: GO:0000051 GO:0000280 GO:0000740 GO:0000002 0 0 0 GO:00...

...fff ffff ffff ................ 0000240: ffff ffff ffff ffff ffff ffff ffff ffff ................ 0000250: ffff ffff ffff ffff ffff ffff ffff ffff ................ 0000260: ffff ffff ffff ffff ffff ffff ffff ffff ................ 0000270: ffff ffff ffff ffff ffff ffff ffff ffff ................ 0000280: ffff ffff ffff ffff ffff ffff ffff ffff ................ 0000290: ffff ffff ffff ffff ffff ffff ffff ffff ................ 00002a0: ffff ffff 02ff ffff ffff ffff ffff ffff ................ 00002b0: ffff ffff 0000 0000 0000 0000 0000 0000 ................ 00002c0: 0000 0000 0000 0000 0000 0000...