[newbie-question] How to import a datafile for lsquares



I'd like to perform quadratic regression analysis on a datafile which is 
made as follows:
2 -3.33333e-01 
3 -5.00000e-01 
4 -7.23607e-01 
5 -1.00000e+00 
6 -1.32799e+00 
.
.
.



I already found in the archives that regression analysis can be performed 
by means of the lsquares package. Can anyone tell me how to import the 
datafile in maxima (preferably without the need of another package)?

regards,
hugo