What is a RMGC file?
A .RMGC file is a RootsMagic Data File created by RootsMagic genealogy software. People use these files to store family trees, historical records, and media links. Internally, a .RMGC file is a standard SQL database.
How to open RMGC files?
You can open these files on Windows or Mac using RootsMagic. Because the data is stored in a standard SQL database structure, you can also inspect the contents using database tools like DB Browser for SQLite or standard SQL command-line utilities.
However, if you do not have this software installed, viewer.online/rmgc analyzes .RMGC files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Best practices and troubleshooting
Keep regular backups of your genealogy data. Before you modify a .RMGC file with a generic SQL editor, make a copy. Direct database edits can break the file structure for RootsMagic.
Software and tools
The primary software is RootsMagic developed by RootsMagic, Inc.. For data recovery or technical inspection, SQLite tools are highly effective alternative options.
Summary
Because .RMGC files use the known SQL format, viewer.online/rmgc can safely open and display them online, eliminating compatibility problems.