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regfiletype — Identify the formats of Regina data files
This utility determines which file format a given Regina data file is in. You may pass multiple files on the command line; the format of each file will be written to standard output.
Only Regina's modern XML-based file formats are recognised (both compressed and uncompressed). In its very early years, Regina used an impenetrable and undocumented binary format; this was replaced with XML in 2002 (Regina 3.0), and support for this format was removed completely in 2013 (Regina 4.94). If you still need to recognise and/or read files in this ancient binary format, you will need to download Regina 4.93.
MacOS X Users
If you downloaded a drag-and-drop app bundle, this utility is
shipped inside it. If you dragged Regina to the main
Applications folder, you can run it as
The command-line utilities are installed beneath the
Program Files directory; on some
machines this directory is called
Program Files (x86).
You can start this utility by running
c:\Program Files\Regina\Regina 5.0\bin\regfiletype.exe.