File Juicer
File Juicer for macOS
Overview of Formats

Search & Extract

Images

jpg jpeg 2000 gif png pdf wmf emf tiff eps pict bmp

Video

mov mpeg avi wmv

Sound

mp3 wav System 7 au aiff

Text

ascii rtf html

From:

avi cab cache chm dmg doc emlx exe ithmb m4p mht mp3 pdf pps ppt raw swf wps xls zip and other formats

.scr - Windows Screen Saver - or a Windows Virus

If you received this file by email from someone you don't know it is a likely Windows virus. You can find out which kind by visiting: VitusTotal - Online Virus Scanner

If it is an actual Windows screen saver you may feed it into File Juicer to see if there are any useful images inside.