Can I open my Project Professional 2007 files in Project Professional 2019?

Project plans from earlier versions of Project can be used in Project 2019 by providing users all the benefits of the current product. To avoid compatibility issues when sharing your new Project files with Project 2007 users, save your project as a Project 2007 file format. (Note: Project 2019, 2016, 2013, and 2010 share the same file format.)