generic@generic:~$ sudo dpkg -i "/media/generic/SD 256 #4/apt-offline_1.8.1_all.deb"
Selecting previously unselected package apt-offline.
(Reading database ... 126031 files and directories currently installed.)
Preparing to unpack .../apt-offline_1.8.1_all.deb ...
Unpacking apt-offline (1.8.1) ...
dpkg: dependency problems prevent configuration of apt-offline:
 apt-offline depends on python3-magic; however:
  Package python3-magic is not installed.

dpkg: error processing package apt-offline (--install):
 dependency problems - leaving unconfigured
Processing triggers for doc-base (0.10.7) ...
Processing 1 added doc-base file...
Processing triggers for man-db (2.7.6.1-2) ...
Errors were encountered while processing:
 apt-offline