回答我自己的问题，但我看到了这篇文章：
http://polymathprogrammer.com/2009/11/09/how-to-create-stylesheet-in-excel-open-xml/ http://polymathprogrammer.com/2009/11/09/how-to-create-stylesheet-in-excel-open-xml/
这表明最小样式表需要的东西不仅仅是numFmts和cellXfs。因此，我调整了他们的代码以生成一个最小的样式表，供我插入单元格格式和数字格式（我在循环中执行此操作）：
private Stylesheet CreateStylesheet()
{
Stylesheet ss = new Stylesheet();
Fonts fts = new Fonts();
DocumentFormat.OpenXml.Spreadsheet.Font ft = new DocumentFormat.OpenXml.Spreadsheet.Font()
{
FontName = new FontName()
{
Val = "Calibri"
},
FontSize = new FontSize()
{
Val = 11
}
};
fts.Append(ft);
fts.Count = (uint)fts.ChildElements.Count;
Fills fills = new Fills();
fills.Append(new Fill()
{
PatternFill = new PatternFill()
{
PatternType = PatternValues.None
}
});
fills.Append(new Fill()
{
PatternFill = new PatternFill()
{
PatternType = PatternValues.Gray125
}
});
fills.Count = (uint)fills.ChildElements.Count;
Borders borders = new Borders();
Border border = new Border()
{
LeftBorder = new LeftBorder(),
RightBorder = new RightBorder(),
TopBorder = new TopBorder(),
BottomBorder = new BottomBorder(),
DiagonalBorder = new DiagonalBorder()
};
borders.Append(border);
borders.Count = (uint)borders.ChildElements.Count;
CellStyleFormats csfs = new CellStyleFormats();
CellFormat cf = new CellFormat() {
NumberFormatId = 0,
FontId = 0,
FillId = 0,
BorderId = 0
};
csfs.Append(cf);
csfs.Count = (uint)csfs.ChildElements.Count;
NumberingFormats nfs = new NumberingFormats();
CellFormats cfs = new CellFormats();
cf = new CellFormat()
{
NumberFormatId = 0,
FontId = 0,
FillId = 0,
BorderId = 0,
FormatId = 0
};
cfs.Append(cf);
ss.Append(nfs);
ss.Append(fts);
ss.Append(fills);
ss.Append(borders);
ss.Append(csfs);
ss.Append(cfs);
CellStyles css = new CellStyles();
CellStyle cs = new CellStyle()
{
Name = "Normal",
FormatId = 0,
BuiltinId = 0
};
css.Append(cs);
css.Count = (uint)css.ChildElements.Count;
ss.Append(css);
DifferentialFormats dfs = new DifferentialFormats();
dfs.Count = 0;
ss.Append(dfs);
TableStyles tss = new TableStyles()
{
Count = 0,
DefaultTableStyle = "TableStyleMedium9",
DefaultPivotStyle = "PivotStyleLight16"
};
ss.Append(tss);
return ss;
}
不能肯定那里没有东西可以扔掉，但我没有耐心通过反复试验来看看它是否可以变得更苗条。
我猜是单元格格式must have a FontId, FillId, BorderId and FormatId除了NumberFormatId为了获得这些 ID，您需要为每个 ID 至少创建一个条目。尽管 XML 模式将它们标记为“可选”，但还是如此。
