Bash od(1) cmd to show one-byte hex codes + encoded characters.

od.sh

od -t x1 -t c 'Allscripts Visit Record.htm' | less
 
# Produces output like the following:
#
# 0000000  ef  bb  bf  3c  21  44  4f  43  54  59  50  45  20  48  54  4d
#         357 273 277   <   !   D   O   C   T   Y   P   E       H   T   M
# 0000020  4c  3e  0d  0a  3c  21  2d  2d  20  73  61  76  65  64  20  66
#           L   >  \r  \n   <   !   -   -       s   a   v   e   d       f
# 0000040  72  6f  6d  20  75  72  6c  3d  28  30  33  38  38  29  68  74
#           r   o   m       u   r   l   =   (   0   3   8   8   )   h   t
# 0000060  74  70  3a  2f  2f  6c  6f  63  61  6c  68  6f  73  74  2f  56
#           t   p   :   /   /   l   o   c   a   l   h   o   s   t   /   V
# 0000100  69  73  69  74  52  65  63  6f  72  64  2f  20  2d  2d  3e  0d
#           i   s   i   t   R   e   c   o   r   d   /       -   -   >  \r