These files are ShapeFiles. (ie, PD338.2015.ZIP, 78MB)
http://ftp.geogratis.gc.ca/pub/nrcan_rncan/vector/electoral/2015/These files are used on GIS software such as ArcGIS. A home license is about $100 (for 1 year)
There are plenty of free ShapeFiles viewers available that allow you to view ShapeFiles.
https://www.gislounge.com/shapefile-viewers/I hope these helps
Sorry for the dumb responce before, I meant it to be more of a question. So... are there any larger images? It doesn't seem like any of those are even usable because of how small they are.
Here is what seems to be the largest image. Not even all the lines connect: