some of the Excel specific format information is in the Microsoft Excel 97
Software Development Kit from MS Press.
http://msdn.microsoft.com/library/de...us/office97/ht
ml/SFACB.asp


Other information:

http://support.microsoft.com/?id=239653
INFO: Support for the Microsoft Office Binary File Formats

http://support.microsoft.com/support...ev/storage.asp
Structured Storage and File Formats

http://sc.openoffice.org/excelfileformat.pdf
Document on Excel Fileformat from Open Office

--
Regards,
Tom Ogilvy

Mariusz Popio³ek wrote in message
...
Hi

Does anybody know where can I find this? I googled a bit and I haven't
found
anything. Recently I have found across information that Microsoft revealed
excel file format specification and I wonder if it is true. Thanks in
advance for any help

Mario