Hi Terry,
If it's helpful, you can find and use all the original offline installers for all Creative Cloud and CS6 tools (including the CC Desktop App) here:
Adobe CC Direct Download Links
and/or
Adobe CS6 Direct Download Links
If you have those files in hand then you can install the free trials anywhere while being offline. In most cases the Internet is used to activate the software longer-term, although Adobe still provides procedures for offline activation:
Activate your software offline
If the computer on which your software is installed cannot connect to the Internet or to Adobe’s activation servers, you can activate your software offline.
For instructions, visitwww.adobe.com/go/getactivated.