iShell is described as 'A set of extensions for Windows Explorer that used to preview SVG' and is an app. There are more than 10 alternatives to iShell for Windows, File Explorer, Mac and Web-based. The best iShell alternative is SageThumbs, which is both free and Open Source. Other great apps like iShell are SVG Viewer, Smart SVG Viewer, XnShell and SVG Explorer Extension.
As of Windows Vista and Window 7, the Microsoft Windows Explorer no longer displays thumbnails image previews of EMF (Enhanced Metafile) and WMF (Windows Metafile) vector graphic images.
This Windows Explorer plug-in restores this capability.
SVGViewer is an extremely useful tool for teams that need to open SVG documents on a modern platform. The application makes it easy to display Vector drawings on your Mac.
Windows (64-bit) Explorer Shell Extensions for SVG files Preview Handler and Thumbnail Provider
This shell extensions will show you a thumbnail of an image file, as well as its dimensions, when you right click on a filename inside Explorer.
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