Outline_3.2212.1_mas_[tnt].dmg

: The standard disk image format for macOS, used to package and install applications. How to Use This Type of File

: This likely refers to Outline , a digital notebook and note-taking application for Mac and iOS that is designed to help users organize information in a structured, hierarchical format. Outline_3.2212.1_MAS_[TNT].dmg

: This is the specific version number of the software. : The standard disk image format for macOS,

If you are looking to create a story outline using this software: : Double-click the .dmg file to open it. Outline_3.2212.1_MAS_[TNT].dmg

: Usually, you would drag the application icon into your Applications folder.