module for extracting values from Excel workbooks in XLSX format

 Excel::ValueReader::XLSX reads the contents of an Excel file in XLSX format.
 Unlike other modules like Spreadsheet::ParseXLSX or Spreadsheet::XLSX,
 there is no support for reading formulas, formats or other Excel internal
 information; all you get are plain values -- but you get them much
 faster!
 .
 Excel::ValueReader::XLSX has two possible implementation backends for parsing
 XLSX files: Excel::ValueReader::XLSX::Backend::Regex, based on regular
 expressions, or Excel::ValueReader::XLSX::Backend::LibXML, based on the
 libxml2 library.
 .
 The Regexp backend uses regular expressions to parse the XML content. The
 libxml2 backend uses XML::LibXML::Reader to parse the XML content. It is
 probably safer but about three times slower than the Regex backend (but still
 much faster than Spreadsheet::ParseXLSX).