SlackBuilds/libraries/liborcus

Orcus is a library that provides a collection of standalone file
processing filters. It is currently focused on providing filters
for spreadsheet documents, but filters for other productivity
application types (such as wordprocessor and presentation) are
in consideration.

The library currently includes the following import filters:

Microsoft Excel 2007 XML
Microsoft Excel 2003 XML
Open Document Spreadsheet
Plain Text
Gnumeric XML
Generic XML

The library also includes low-level parsers for the following:

CSV
CSS
XML
JSON

These parsers are all implemented as C++ templates and require a
handler class passed as a template argument so that the handler class
receives various callbacks from the parser as the file is being parsed.