Xar (vector graphics)
Xar is a vector graphics file format developed by Xara as an open standard, and used by some of their products such as Xara X (now named Xara Photo & Graphic Designer). It was originally named Flare. It is also known by a number of other names containing the word Xara.
Files begin with bytes
'X' 'A' 'R' 'A' 0xA3 0xA3 0x0D 0x0A.