2.1.715 Part 1 Section 18.8.40, tableStyle (Table Style)
a. The standard incorrectly states that built-in table styles are written in tableStyle elements.
In Office, only user-defined table styles are written to the tableStyle elements.
b. The standard does not limit the length of the value of the name attribute.
Excel restricts the value of this attribute to be at least 1 and at most 255 characters.
c. The standard states that the maxOccurs value for the tableStyleElement child element is unbounded.
Excel limits the occurrences of this element to 28.