Why does Numbers hide a huge PNG file in exported Excel sheets?

Re:Why does Numbers hide a huge PNG file in exported Excel s... by valevk on Monday August 18, 2014 @08:52AM (#8192394)

It doesn't seem to be explicitly associated with Numbers, but with Excel: http://www.it-volpers.net/2011/03/21/disassemble-xlsx/

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Re:Why does Numbers hide a huge PNG file in exported Excel s... by kyberias on Monday August 18, 2014 @10:17AM (#8192691)

The file in the OP's article was generated by Numbers, not Excel. The png file in your link is there for a reason, since an image (a logo) was added in an Excel spreadsheet.

So you are mistaken.

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Re:Why does Numbers hide a huge PNG file in exported Excel s... by UnoriginalGuy on Monday August 18, 2014 @09:41AM (#8192544)

That article doesn't support your conclusion. Did you draw that conclusion because the file is named "image1" in both the OP's article and that one?

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Re:Why does Numbers hide a huge PNG file in exported Excel s... by louhike on Monday August 18, 2014 @10:22AM (#8192712)

According to one of the answer, it is an image to fill used by Excel. So its goal is the same, even if the picture is different.

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Re:Why does Numbers hide a huge PNG file in exported Excel s... by wlesieutre on Monday August 18, 2014 @11:04AM (#8192927)

The image1.png file included by Excel is definitely an image that the author used in the spreadsheet, not a piece of cruft. Since he provides a copy of the xslx file, it's trivial to check:

http://i.imgur.com/j1A5vvC.png

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