in reply to Re^4: Spreadsheet::WriteExcel large files (text versus binary format)
in thread Spreadsheet::WriteExcel large files
.xls files can contain all sorts of stuff. In addition to the formulae and values, they can also contain whole libraries of macrocode; lookup tables; formatting instructions etc. I think they can also contain embedded images and graphs though I'm not sure about that. They are also known to contain all sorts of other crap, some of which can have security implications.
As you are creating the smaller file by only copying over the values of a range of cells, all that other stuff will not exist in the file created.
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Re^6: Spreadsheet::WriteExcel large files (text versus binary format)
by mrguy123 (Hermit) on Jan 02, 2012 at 13:51 UTC |