I have some data stored in a file (xyz.dat) in the following format:

```
1   0.997790664988225E+000   0.100177762164687E+001   0.100034262755073E+001        
2   0.997788473973293E+000   0.100177969047903E+001   0.100034273413754E+001        
3   0.997782981718032E+000   0.100178486093194E+001   0.100034301665219E+001

```

What I want to do is, for each row, store the first column as `x` and rest of the values as `y[1]`, `y[2]`, `y[3]`...so on. Later I want to plot the data stored in `y[n]` for each row separately. I am new to python and have tried using split() but did not have much success. I am either not able to separate out the first column or at the end of each row there is a trailing `'\n'`. Any help will be really appreciated. Thanks in advance.