Endian coding

Little-endian lists the bytes with increasing significance and big-endian lists them with decreasing significance.

In the little-endian format, the least significant byte is stored first. In the big-endian format, the largest byte is first stored.

Little-endian is low-to-high; which means right to left.
Big-endian is high-to-low; that means left to right.

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Thus, the term hex belongs to big-endian and reverse hex to little-endian.

Example:
hex: (high-to-low) - 33FACC00
reverse hex: (low-to-high) - 00CCFA33

33 FA CC 00
Big-endian: 33FACC00
Little-endian: 00CCFA33

00 00 0F 11
Big-endian: 00000F11
Little-endian: 110F0000