What is the difference between Activated Sheet Document, Activated Sheet Server and Activated Sheet?

[#1]

Hi,

Can anyone help me with understanding the difference between Activated Sheet Document, Activated Sheet server and Activated Sheet?

I am getting this data when I try to load the Audit Logs available within the QlikView log folder into a QVW?

Audit_Log:

LOAD [Server Started],

     Timestamp,

     Document,

     Type,

     User,

     Message // This is where I get the sheet information

FROM

(txt, utf8, embedded labels, delimiter is '\t', msq)

where Type = 'Sheet';

Regards,

Janaki