My neighborhood became corrupt and I can't open the saved file so I'm starting over. I started a new neighborhood using Sunset Valley. I 'raptured' the residents and bulldozed the houses. I am now in the process of updating the community lots. When I'm finished I would like to save the neighborhood as a template, possibly replacing EA's Sunset Valley, so I can use it again and won't have to go to the work of cleaning it up again. I'm lazy that way.
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How would I do that?