16. implement
concealed
This KVS Class Internal processing
XLS_KVS
<<Presentation>>
Win32OLE
Microsoft Excel
COM API
<<Entity>>
Microsoft Excel
Excel Workbook
28. on memory running
• if call XLS_KVS#new
–create XLS_KVS::Hash instance
–lunch Microsoft Excel
• if call XLS_KVS::Hash#Close
–save&close Excel Workbook
–unload Microsoft Excel