Deleting Empty Values in a Mathematica Table

Deleting Empty Values in a Mathematica Table

I'm importing data from some .asc files in Mathematica using the
Import[filename, "Data"] command, and storing it in a table. I've run into
a problem where sometimes the .asc files have some empty lines at the end
of the file, which result in empty values in the table which causes some
problems for me later on.
For instance, when I look at data[[5 ;; (Length[data])]], I get:
{{3446.05, 15.5156}, {3446.18, 14.5156}, ..., {3451.49, 7.51563}, {}, {},
{}, {}}
So my question is: what is the best way to get rid of these empty values?
I've looked into either ignoring whitespace in the Import, but haven't
found anything that accomplishes that. I've also looked at Delete, but I
can't seem to get an expression that matches the empty values.
One way that I can do this is to change Length[data] to 'Length[data]-4`.
However, that needs to be potentially changed for each file and I would
prefer something that would be a more generalized solution that would work
for any file, whether they have whitespace or not.