Here is a list of all files with brief descriptions:

libwps.h
libwps_internal.cpp
libwps_internal.h
libwps_tools_win.cpp
libwps_tools_win.h
Lotus.cpp
Lotus.h
LotusGraph.cpp
LotusGraph.h
LotusSpreadsheet.cpp
LotusSpreadsheet.h
LotusStyleManager.cpp
LotusStyleManager.h
Quattro.cpp
Quattro.h
QuattroSpreadsheet.cpp
QuattroSpreadsheet.h
WKS4.cpp
WKS4.h
WKS4Spreadsheet.cpp
WKS4Spreadsheet.h
WKSContentListener.cpp
WKSContentListener.h
WKSParser.cpp
WKSParser.h
WKSSubDocument.cpp
WKSSubDocument.h
WPS4.cpp
WPS4.h
WPS4Graph.cpp
WPS4Graph.h
WPS4Text.cpp
WPS4Text.h
WPS8.cpp
WPS8.h
WPS8Graph.cpp
WPS8Graph.h
WPS8Struct.cpp
WPS8Struct.h
WPS8Table.cpp
WPS8Table.h
WPS8Text.cpp
WPS8Text.h
WPS8TextStyle.cpp
WPS8TextStyle.h
WPSCell.cpp
WPSCell.h
WPSContentListener.cpp
WPSContentListener.h
WPSDebug.cpp
WPSDebug.h
WPSDocument.cpp
WPSDocument.h
WPSEntry.h
WPSFont.cpp
WPSFont.h
WPSGraphicShape.cpp
WPSGraphicShape.h
WPSGraphicStyle.cpp
WPSGraphicStyle.h
WPSHeader.cpp
WPSHeader.h
WPSList.cpp
WPSList.h
WPSListener.h
WPSOLEParser.cpp
WPSOLEParser.h
WPSPageSpan.cpp
WPSPageSpan.h
WPSParagraph.cpp
WPSParagraph.h
WPSParser.cpp
WPSParser.h
WPSPosition.h
WPSSubDocument.cpp
WPSSubDocument.h
WPSTable.cpp
WPSTable.h
WPSTextParser.cpp
WPSTextParser.h
WPSTextSubDocument.cpp
WPSTextSubDocument.h