> On Aug 6, 2021, at 3:44 AM, Moditha Hewasinghage 
> <[email protected]> wrote:
> 
> Hi everyone,
> 
> I am trying to append a sheet into an existing xlsx and encountering memory 
> issues. However, If I do not open an existing xlsx I can write far bigger 
> files. I have an example code snippet here:
> 
> https://snippet.host/epsv
> 
> With 2GB of memory I only manage to append 3 sheets before I run out of 
> memory in wb.write().
> 
> But I can easily create a new workbook and append 10 sheets without any 
> issue. Could you please tell me if I am doing a mistake somewhere or if there 
> is an alternative for this.
> 
Are you adding empty sheets in the latter and large, with-data sheets(either 
the existing or the appended) in the former?

> Thank you,
> Regards
> Moditha
> 
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