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From MSB <markbrd...@tiscali.co.uk>
Subject Re: Custom Number format in POI
Date Tue, 15 Sep 2009 06:30:30 GMT

I suspect that it has something to do with Excel attempting to understand the
format when it opens the workbook.

After reading your post, I opened Excel and applied a custom format to a
cell - the four zeros in your original question. When I again went to check
the format applied to that cell, Excel had 'decided' it was a special format
that resembled a Portuguese Post Code/Telephone Number/Social Security
Number. So I am guessing - and I must emphasis that it is a guess - that
Excel finds a match for the data format you are creating in the list of
Special formats that are in-built and assumes that you 'really want' to
apply this format to the cell. As far as I know, there is no way to
circumvent this behaviour but as with everything, I could be wrong and
another list member may have the answer.


Mark B

Patil Minal wrote:
> Hi,
> I am assigning a cell format to cells which contain numeric values. This
> cell format is being created on the fly based on the length of the value
> of the field like for number 0890 the format is '0000' and for 3454387 the
> format would be '0000000'. But in the excel, when I check the format of
> these fields they seem to be some Special format. Why would it be a
> special format and not the custom format?
> - Minal.

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