XAR (Xar, .xar)

The Xar file format, previously known as the Flare file format, is an ultra-compact, open, vector graphic format. It is also the native graphics format for Xara X application (and also its predecessors such as CorelXARA).

The Xar file format is not new. It dates back nearly ten years and so it predates more recent formats such as SVG. It is not designed to compete with SVG, but Xar files are considerably simpler to understand (the SVG spec is 700 pages) and, more compact (often 10:1). However the primary reason for the existence of the open file format specification is to enable third parties to read and write the Xara X native files.

The Xar vector graphic structure is that of modern vector programs, based on the Adobe Postscript rendering model, but with additional features. The graphic primitives are broadly similar to those available in Postscript, PDF and SVG. However Xara X, and thus the .xar file format, support more advanced graphic primitives and effects, for example a greater range of graduated fill types, graduated transparency, feathered vector shapes (soft edges), soft shadows and more. These enable the talented artist to create highly realistic and more ‘painterly' effects with Xara X than is possible with traditional vector graphics solutions.