Changes for version 0.21
- Minor Replaced direct access to worksheets array with a workbook method; worksheets(). Added set_selection() and set_col_width() worksheet methods. Replaced the missings thats, including the that that were in the icebox. Added MS Access bug warning; thanks Harold Bamford.
- Spreadsheet::BIFFwriter - Abstract base class for Excel workbooks and worksheets.
- Spreadsheet::OLEwriter - Writes BIFF data into a OLE compound storage file.
- Spreadsheet::Workbook - A writer class for Excel Workbooks.
- Spreadsheet::Worksheet - A writer class for Excel Worksheets.
- Spreadsheet::WriteExcel - Write text and numbers to a cross-platform Excel binary file.