When a .GZP file is exported, the contents can be previewed with Windows File Explorer after adding the following Registry Entries.
To Preview Guru Attributes and Objects:
1. From Windows, open a cmd window by typing "cmd" at the Start Menu and then selecting Run as Administrator.
2. In the admin cmd window, type the following two commands, pressing Enter after:
reg add HKLM\SOFTWARE\Classes\.GAT /v PerceivedType /t REG_SZ /d text
reg add HKLM\SOFTWARE\Classes\.GOB /v PerceivedType /t REG_SZ /d text
3. Now launch a File Explorer to the contents of a .GZP file and you are able to preview the contents of both the attributes ( .GAT ) and Object ( .GOB ).
Note: Binary Objects (like .png) are not human readable when displayed as text.