Reading an Ascii file

Dear list,

I am trying to read ArcGIS raster data sets into R after converting them into ASCII .txt file. The text file I am trying to read contains 

ncols???????? 250
nrows???????? 276
xllcorner???? 344147.19411119
yllcorner???? 3024657.6122834
cellsize????? 0.19970250725746
NODATA_value? -9999

in the first lines followed by a grid of values that are either -9999?or 1. 

I have used read.table("myfile.txt") which yields this (first 10 lines).


V1??????????? V2
1????????? ncols? 2.500000e+02
2????????? nrows? 2.760000e+02
3????? xllcorner? 3.441472e+05
4????? yllcorner? 3.024658e+06
5?????? cellsize? 1.997025e-01
6????? NODATA_value -9.999000e+03
7????????? -9999 -9.999000e+03
8????????? -9999 -9.999000e+03
9????????? -9999 -9.999000e+03
10????????-9999 -9.999000e+03

I would like to have the data as a table with coordinates for each cell and the actual value.

Could somebody advise me which function I should use ? 

Many thanks,

Juliane