| Package | Description | 
|---|---|
| org.apache.poi.hssf.model | Provides low level API structures for reading, writing, modifying XLS files. | 
| org.apache.poi.hssf.record | Record package contains class representations for XLS binary strutures. | 
| org.apache.poi.hssf.usermodel | The usermodel package maps HSSF low level structures to familiar workbook/sheet model | 
| Modifier and Type | Method and Description | 
|---|---|
| ExtendedFormatRecord | InternalWorkbook. createCellXF()creates a new Cell-type Extended Format Record and adds it to the end of
  ExtendedFormatRecords collection | 
| ExtendedFormatRecord | InternalWorkbook. getExFormatAt(int index)gets the ExtendedFormatRecord at the given 0-based index | 
| Modifier and Type | Method and Description | 
|---|---|
| void | InternalWorkbook. removeExFormatRecord(ExtendedFormatRecord rec)Removes the given ExtendedFormatRecord record from the
  file's list. | 
| Modifier and Type | Method and Description | 
|---|---|
| ExtendedFormatRecord | ExtendedFormatRecord. copy() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | ExtendedFormatRecord. cloneStyleFrom(ExtendedFormatRecord source)Clones all the style information from another
  ExtendedFormatRecord, onto this one. | 
| Constructor and Description | 
|---|
| ExtendedFormatRecord(ExtendedFormatRecord other) | 
| Constructor and Description | 
|---|
| HSSFCellStyle(short index,
             ExtendedFormatRecord rec,
             HSSFWorkbook workbook)Creates new HSSFCellStyle why would you want to do this?? | 
| HSSFCellStyle(short index,
             ExtendedFormatRecord rec,
             InternalWorkbook workbook) | 
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