Problem on Export to Excel - converts Long type field to General (Unknown)

hello! i used JSP to export table data to excel.. there's nothing wrong with the data displayed.. But the problem is.. when one of the fields is computed and retrieved in the JSP, and then exported to excel, it converts the Long type field to General and therefore cannot be computed when being used in a formula. Also, when you change it's type by right clicking the cell and chose "Format Cells", it still can't change it's type to number even if you have it changed. Therefore can't be computed..
I have other number fields but they were just retrieved and not computed as they were exported to excel.. But they don't change their types like the computed ones..
please help.. thanks

hello! i used JSP to export table data to excel..Yuck. :p Didn't even consider it being possible. I'd use a servlet anyway, after all, it's designed to be able to stream out non-HTML.
there's nothing wrong with the data displayed.. But
the problem is.. when one of the fields is computed
and retrieved in the JSP, and then exported to excel,
it converts the Long type field to General and
therefore cannot be computed when being used in a
formula. Well, since there is no class in the standard API that handles Excel files, you migh want to ask the support of whoever provided your tool.

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Untitled 11.vi ‏194 KB
excel.JPG ‏96 KB
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Dear
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Problem on Export to Excel - converts Long type field to General (Unknown)

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