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  2. RPG400-L
  3. August 2011

Re: HSSF Question

On Wed, Aug 3, 2011 at 5:40 PM, <sjones@xxxxxxxxxxxxxxx> wrote:
I want to write an RPG program that will update the data each
month using HSSF.  Is there a way to delete to existing data or
tab & then populate it again?  I see where I can add a tab
using HSSF, but not delete.

Scott Klement pointed out the removeSheetAt() method that will
probably remove a sheet. This, coupled with adding a sheet, should be
what you need.

I am not familiar with HSSF personally, but I do deal with Excel files
a lot, and the file format is such that our intuitive concept of
"updating" is not applicable. You really copy all the data from the
Excel file into memory, then manipulate the data in memory as needed,
and then write a completely new file (even if this file has the same
name as the original). So I would be surprised (and impressed!) if
HSSF provides cell-by-cell updating.

John

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