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From Ying Zhang <>
Subject Re: [Discussion] [OOXML] Shall we keep all cellStyles from xlsx or not
Date Fri, 31 Aug 2012 01:38:12 GMT
I think we should not have such limitation of 4050 like MS binary file
format, it sounds like a workaround for performance improvement, and MS
2007/2010 have more improvement, we should improve the AOO's capacity to
interop with MS Office 2007/2010 further.  And also for the first, could we
find the key problems from technical view for low performance. Then find
solutions for performance improvement.

2012/8/30 bjcheny <>

> Hi guys,
> I am fixing bug 120619, which is about Aoo takes too long time to open
> xlsx file.
> The root cause is that sample file has up to 28380
> cellStyles/cellStyleXfs, though nearly no reference to them at all.
> A question came up when I tried to figure out a solution:
> Shall we set a limitation here?
> When we export xls file by Aoo, there is a limitation of 4050. It seems
> reasonable because MS 2003 Excel can't support too many cellStyles.
> It can be proved by indication provided by MS 2007 Excel when you save
> sample xslx as xls, as attached pic.
> Thus, I really need your opinions. Or can there be a better solution?
>  Regards

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