Hi @Krista Moore,
Click on "Extensions" > "Manage Extensions" in your Visual Studio.
In the search bar of the opened window, we type "Integration Services" to easily locate the extension. From the appeared list we choose "SQL Server Integration Services Projects" and press "Download".
Here is a detail tutorial, you may take a reference to.
Regards,
Zoe Hui
If the answer is helpful, please click "Accept Answer" and upvote it.