To import a file. The following steps will walk you through the process of using an existing task outline from a previously saved file, to populate a new project. 1. In Microsoft Project, click the File tab, and click OPEN. 2. Select the file type and name of the file to be imported. 3. Click OPEN.An Import Wizard window will open to assist you with the advanced steps for importing information. 4. Choose to import as a new map. 5.n Microsoft Project, click the File tab, and click OPEN. 2. Select the file type and name of the file to be imported. 3. Click OPEN. An Import Wizard window will open to assist you with the advanced steps for importing information. 4. Choose to import as a new map. 5.