You have a list object. You could create a matrix and save it to file. Here some sample data:
kj <- list(c(1,2), c(2,3))
Now create the matrix by treating each entry of the list as a row:
kj <- do.call(rbind, kj)
The matrix looks like this:
> kj
[,1] [,2]
[1,] 1 2
[2,] 2 3
Save the matrix to file:
write.table(kj, "kj.txt")
The file kj.txt
looks as follows:
"V1" "V2"
"1" 1 2
"2" 2 3