Each row in rbibutils_formats gives information about a supported
bibliography format in package rbibutils.
Abbreviation is the name to use in arguments informat
and outformat in bibConvert.
FileExt is the default extension used to infer the input/output
format if the corresponding argument is missing.
Input (Output) is TRUE if the format is supported
for input (output).
Description gives a brief description of the format.
See bibConvert, section “Supported formats”, for
further details.