Pointing the MSDN page to Integration Services Projects
Files in integration service projects
When you add a new or existing Integration Services Project solution, Business Intelligence Development Studio creates project files with the extensions .dtproj and .dtproj.user and .database.
- The * .dtproj file contains configuration project information and elements, such as source and package data.
- The * .dtproj.user file contains information about your preferences for working with the project.
- The * .database file contains information that Business Intelligence Development Studio requires opening an Integration Services project.