Hi there,
Welcome to the QuickBooks Community. I'll be happy to steer you in the right direction so you can get back to doing what you enjoy.
In order to accomplish your goal I encourage you to check out this article: Import and export data in QuickBooks Desktop. The article shows you how to import your estimates with ease. You're more than welcome to ask other in questions in the comments in the comments below, I'll be one message away.
