Vios-adventerprisek9-m.vmdk.spa.156-2.t //top\\ Download Direct

But what exactly is this file?

qemu-img convert -f vmdk -O qcow2 vios-adventerprisek9-m.vmdk vios1562.qcow2 vios-adventerprisek9-m.vmdk.spa.156-2.t download

: This indicates it is a Virtual IOS image with the "Advanced Enterprise" feature set, which includes advanced routing, security, and switching capabilities. But what exactly is this file

Use the appliance template in GNS3 or upload the file to the /opt/unetlab/addons/qemu/ directory in EVE-NG. Resources: which includes advanced routing