Migrate Sandbox changes from one environment to another

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We have made some security changes using personalization (EL to hide/unhide fields based on roles) in couple of place. Couldn't find a proper document on how to migrate them. Before publishing the sandbox I have the option to download the jar file, but not sure how to use the same on target environment.

Appreciate if someone could provide me the steps to migrate or documentation link,

TIA

Vijay