2.1.861 Part 4 Section 3.13.10, textField (Text Import Field Settings)
a. The standard does not indicate relationships between the position attributes of textField elements of the collection.
In Office, subsequent textField elements shall have position values greater than or equal to the preceding elements.
b. The standard states that the values of the position attribute are defined by the XML Schema unsignedInt datatype.
In Office, the range for the position attribute is between 0 and 2147483647 inclusive.