The format for the CSV file is simple: the first row contains a list of column headings, and the following rows contain the data.
CSV文件的格式很简单：第一行包含列标题列表，下面的行包含数据。
A pivot table is a table in which the user can dynamically choose which fields are used as the row headings, the column headings, and what is shown as the data in each cell.
pivot表是这样一种数据表，用户可以动态地选择其中的哪些字段被用作行标题、列标题，以及被显示为每个单元格中的数据。
Crosstab queries summarize your values and then group them by two sets of facts - one set down the side (row headings), and the other across the top (column headings).
交叉表查询可对值进行汇总，然后按两组依据对它们分组：一组沿侧面排列(行标题)，另一组沿顶端排列(列标题)。
Row 2 - Headings for each column for reference. The line can be edited but not removed.
行2-每一列的标题，这些标题可以编辑但是不能删除。
Row 2 - Headings for each column for reference. The line can be edited but not removed.
行2-每一列的标题，这些标题可以编辑但是不能删除。
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