| Interface | Description | 
|---|---|
| ExtractorProvider | |
| POIOLE2TextExtractor | Common Parent for OLE2 based Text Extractors
  of POI Documents, such as .doc, .xls
 You will typically find the implementation of
  a given format's text extractor under
  org.apache.poi.[format].extractor . | 
| POITextExtractor | Common Parent for Text Extractors
  of POI Documents. | 
| Class | Description | 
|---|---|
| ExtractorFactory | Figures out the correct POIOLE2TextExtractor for your supplied
  document, and returns it. | 
| MainExtractorFactory | ExtractorFactory for HSSF and Old Excel format | 
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