You Can Download single image or bundled zip file (if there are multiple images) by clicking above "Download Image(s)" button. To extract/open all images from the zip file, a zip extractor software is needed. Links are given below if you don't have any similar software.
Click here to download Winrar for Windows.
Click here to download app for Android.
Click here to download app for iPhone.
Click here to download software for Mac OS.