Apace POI XSSF does not support column count, WHY ?

Hi Team,

I am new to Java.
I am writing a program to read XL file (xlsx format).

I go through the Apache POI API document, I found that I can get row count from XL file.
However there is no function to get column count from XL, why this is?

This is strange for me, Apace POI developers should be capable to provide such functionality when they can develop entire lib.
I have to write from loop/iterate function to get column. Is there any other easy way?
Please suggest.

Thanks,
Ashvini