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you can see it in http://poi.apache.org/.
build POI in your local:
1. install Ant and Jdk. set the java_home, ANT_HOME in ENV.
2. build Poi jar by 'ant jar'
3. run test of ooxml by 'ant test-ooxml'
After get POI build, So we can use it to check the output of AOO.
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