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There are two possible
data formats that SigmaXL can accommodate: stacked column and unstacked multiple column. The stacked column format has an X
column also referred to as the “Group Category” column and a Y
column that contains the data of interest. The following is an
example of data in stacked column format, with three unique groups
of Customer Type:

If
the data is in unstacked multiple column format, each unique group
of X corresponds to a different column. The above data is shown in
unstacked format with customer satisfaction scores for each
customer type in separate columns:
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