Indicates the locale ID (LCID) of the language in which the cell formula, text, custom property, or comment was entered.
For a list of languages supported by Microsoft Office applications and their corresponding language IDs, see the DocLangID element.
Optional string. Represents a unit of measure. The default is NUM. For details about NUM, see Units of measure.
Optional string. Represents the element's formula. This attribute can contain one of the following strings: "someFormula" if the formula exists locally, "No Formula" if the formula is locally deleted or blocked, or "Inh" if the formula is inherited.
If the attribute is not present, the element's formula is a simple constant. For example, <element>5</element>.
Optional string. Indicates that the formula evaluates to an error. The value of Err is the current value (an error message string); the value of the element is the last valid value.
The following example shows how the LangID element is used when it is contained in an Annotation element.