Compatibility of Different Versions

 

The XLS format is based on the BIFF8 specification. Full support of this format is realized starting with the Excel 9.0 (Excel 2000).

 

Excel 8.0 (Excel 97):

does not support correct color;

does not fully support the Right to Left mode.

 

Excel 7.0 (Excel 95) and earlier versions:

does not support vertical alignment in  a cell;

does not support integrated cells;

does not support some other parameters.