Calc/Proposal DataPilot byIBM

Background

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Problem Description

Allocate too many abundant arrays 
For a simple datapilot table:

 Member A1 in L1 field will create a array for all members {B1,B2,B3}. But only B1 is visible and valid.
Allocate too much memories
 Every member stored a big structure.
Set too many border styles for output area 
 Some borders are set twice or more.

Solution

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