Ignore empty rows from sheet file

[mgu-shs]

Reference issue: #6

I'm trying to load a file with a few rows of data, but the callback gives me an extra 200k rows of nothing, taking a long time to process the file instead of just returning the first N rows with data.

Is there a way to ignore these empty rows or is it a problem with the file itself?

File for reference:
EXCEL-READER-TEST-FILE.xlsx

Edit: It seems the empty rows with formatted cells (white borders) are counting as data. Any ideas?