What is a DRAWING file?
A .DRAWING file usually stores vector graphics, diagrams, or sketch data. Because multiple programs share this extension, its exact contents can vary. The most common use is as a diagram file created by OmniGraffle, developed by The Omni Group. In this context, the file uses the standard plist structure to store shapes and diagram properties.
Another common format is the PencilKit drawing data file, generated when users sketch with an Apple Pencil in apps like Apple Notes. Additionally, the Mapdiva graphics software uses the .DRAWING extension for an Artboard Drawing.
How to open DRAWING files?
If you know the origin of the file, you can open it with its native software. Use OmniGraffle on macOS or iOS for OmniGraffle diagrams. If the file is a PencilKit sketch, it is best viewed on an iPad or iPhone via Apple Notes. For an Artboard Drawing, you will need Mapdiva software.
Because a .DRAWING file has multiple possible meanings, it is easy to use the wrong application. viewer.online/drawing analyzes .DRAWING files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Best practices and troubleshooting
If a .DRAWING file fails to open, do not force it into a random graphics program. Doing so might corrupt the data. Instead, check the file structure. Since OmniGraffle files use a plist format, you can safely open them in a text editor like Notepad or Visual Studio Code to inspect the metadata and confirm the source.
Software and tools
Summary
Because .DRAWING files use the known plist format, viewer.online/drawing can safely open and display them online, eliminating compatibility problems.