2.1.762 Part 1 Section 18.10.1.39, groupLevel (OLAP Grouping Levels)

a.   The standard does not limit the length of the value of the caption attribute.

Excel restricts the value of this attribute to be at most 255 characters when the createdVersion attribute on the pivotCacheDefinition element is less than 3 and 32767 characters otherwise.

b.   The standard does not limit the length of the value of the uniqueName attribute.

Excel restricts the value of this attribute to be at most 255 characters when the createdVersion attribute on the pivotCacheDefinition element is less than 3 and 32767 characters otherwise.

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