Another Bug-Report that came in before Christmas:
http://rubyforge.org/tracker/index.php?func=detail&aid=23287&group_id=678&atid=2677
Spencer Turner reports that he can successfully write a file which can be read, in Excel, however, when he highlights cells and try’s to print them, Excel (OfficeXP on Windows XP) says it cannot find any data.
Looking at the file created in a Raw Text editor, he does not see any BIFF text added. Once he saves it again from OpenOffice, it is there.
Update: This Bug has been solved here:
http://scm.ywesee.com/?p=spreadsheet;a=commitdiff;h=dc508a787f33e00dd1ca6efb88c1b4c36b08f71a
The Ruby Spreadsheet 