I am new using QGIS and struggling with this error "...... .asc is not a supported raster data source" when trying to add a ."asc" file as a raster.

I downloaded the files from http://www.geog.mcgill.ca/landuse/pub/Data/175crops2000/ArcASCII-Zip/

I tried Layer: Add Raster Layer, and also Raster: Conversion: Translate (convert format) but neither recognized the .asc



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