metatools_example

pkg comes bundled with a number of sample files in its `inst/extdata`
directory. This function make them easy to access

Uses the metadata information stored in 'metacore' objects to check and build metadata associated columns.

Christina Fillmore

<dl><dt>file</dt>
<dd>Name of file. If `NULL`, the example files will be listed.</dd></dl>

<dl>

<dt>file</dt>
<dd>Name of file. If `NULL`, the example files will be listed.</dd>

</dl>