[Qgis-user] LandScan data

[Luciano La Sala]

Hello!

I have the LandScan 2002 Global Population Database at 30 arc seconds but I
am not sure about its format; either "Raster GIS: ESRI Grid format" or
"Binary raster: ESRI binary raster format". I need to extract and process
only data for Argentina, but I feel like I've been beating a dead horse for
days now! 
Is there a straightforward way to do this? 

Thank you in advance! 

Luciano