TXLSFile library v.4.0. and XLSExport components Full source (edited to XE2)

TXLSFile is a Delphi library for reading and writing MS Excel
XLS files. It is based on direct reading and writing of files,
and works without OLE Automation with Microsoft Excel.

TXLSFile is distributed with XLSExport components package.
XLSExport is a Delphi components package for quick data
export into MS Excel file with one line of code.