reading csv huge number as string

Hello to everyone.

I have CSV which is having "ID" field with a very big number 30665783822000811

When I load file

df <- tryCatch(read.csv(infile, sep=",",header=T),error=c)

the number changes by little bit.

May I tell R to read as string so will no longer to round incorrectly?

thank you to helping.

DANKO.

output and input file. ID is almost last column. You can see in file number of
30665783822000811
changes to
30665783822000812

Others are also the change.

c(30665783822000812, 30665783822000812, 30776079583003384, 30776079583003384, 31038814682008480, 31038814682008480, 31085247614009460, 31085247614009460, 31171634641011956, 31171634641011956, 31357713785015660, 31357713785015660, 31491106138000808, 31491106138000808, 31640124796002716, 31640124796002716, 32016088837006768, 32016088837006768, 32324417329009216, 32324417329009216, 33250902212000224, 33250902212000224, 33357470812002116, 33357470812002116, 33396845122004252, 33396845122004252, 33440823952006504,

time,LSI,bidpz,askpz,price,mybidsz,myasksz,totbidsz,totasksz,pegdiff,fillsz,fillpz,id,exectype
1285075866,0.467419,17.4100,17.4700,17.4200,0,5,4,1,0.0000,0,0.0000,30665783822000811,0
1285075892,0.308993,17.4100,17.4300,17.4100,0,5,4,1,0.0000,0,0.0000,30665783822000811,4
1285075978,0.049906,17.4100,17.4700,17.4400,5,0,3,3,0.0000,0,0.0000,30776079583003386,0
1285076106,1.3e-05,17.4100,17.4600,17.4300,5,0,4,4,0.0000,0,0.0000,30776079583003386,4
1285076240,2.474414,17.3600,17.3800,17.3800,5,0,4,4,0.0000,0,0.0000,31038814682008480,0
1285076269,0.057438,17.3700,17.4100,17.3800,5,0,5,1,0.0000,0,0.0000,31038814682008480,4
1285076286,0.26067,17.3700,17.4100,17.3700,5,0,3,1,0.0000,0,0.0000,31085247614009461,0
1285076376,0,17.3700,17.4100,17.3700,5,0,4,1,0.0000,0,0.0000,31085247614009461,4
1285076376,0,17.3700,17.4100,17.3700,5,0,4,1,0.0000,0,0.0000,31171634641011957,0
1285076463,1.479583,17.3700,17.3700,17.3800,5,0,1,1,0.0000,0,0.0000,31171634641011957,4
1285076559,0.010071,17.4100,17.4200,17.3900,5,0,5,1,0.0000,0,0.0000,31357713785015660,0
1285076684,4.517916,17.4900,17.5200,17.5100,5,0,3,4,0.0000,0,0.0000,31357713785015660,4
1285076692,0.912134,17.4900,17.5200,17.5100,5,0,3,4,0.0000,0,0.0000,31491106138000807,0
1285076841,3.104893,17.5300,17.5700,17.5500,5,0,5,3,0.0000,5,17.5200,31491106138000807,2