Why
Didn't work?
Code:
apt install pkg.tar
E: Unable to locate the software package mysql-8.0.21-linux-glibc2.17-x86_64-minimal.tar
E: Cannot find any software package according to glob ‘mysql-8.0.21-linux-glibc2.17-x86_64-minimal.tar’
E: Cannot find any software package according to the regular expression mysql-8.0.21-linux-glibc2.17-x86_64-minimal.tar