Only Acronis can understand .tib files.
If you don't want to install it, the only other option is to use the Acronis LiveCD, which is a boot CD that doesn't require installation.
There are products that take backups in universal formats, such as zip or iso.
Zip products do not normally take backups of the running system, but rather of selected directories.
Some free backup tools that can create an iso out of the running system are:
Disk2vhd
VMware vCenter Converter
You can also use a disk-imaging product that will image the whole disk to another.
However, such products do not compress the hard disk.
Disk compression normally requires a proprietary backup format.