Perhaps a migration to QV12.x is a better path. Qlikview will not be retired for a long time. So there is no pressing need to migrate to Qlik Sense.
You can't migrate the user interface part of Qlikview workbooks to Qlik Sense. You can reuse the data models and with minor modifications reuse the load scripts. You could even use the qlikview workbooks as a data layer and binary load them in Qlik Sense apps. But all the charts and tables will have to be remade. You can't import those.
It is now possible to access Qlikview workbooks from a Qlik Sense hub (the so called unified hub), but this still needs a Qlikview server in the background that actually hosts the Qlikview workbooks