This is a totally normal terminal recording, nothing to see here.
Needs a terminal that supports 256 colors such as xterm. Works optimally on an 80x24 terminal geometry, so resize your terminal before playing.
Decompress it with the command gzip -d < recording.ttyrec.gz > recording.ttyrec
Play it with the command ttyplay recording.ttyrec.
The ttyplay command is available in the ttyrec package in most distributions.