Identify file format from header?

Question

I got some files , which has header,

{AD08E961-F492-11d1-B0EA-00AA00683350}2.00:en_US:45015:021 

Can you please help me in finding out, from which software it is created.

Only information I have is, This file is created around 2000-2003.

I want to parse these files and want to extract some data.

Thanks, Sunny.

Answer 1

These files (NAO, NLO) came with SkillSoft's courses. I think it's encrypted to protect the content. You need to use SkillSoft/NetG player to read it.

Answer 2

Do they have the extension NLO? A Googling of the GUID returns just one source, which possibly leads back to something called NetG Skill Builder which is training software.