formula2: A CT_DataValidationFormula element that specifies the second formula for the data validation.
If operator is "between" or "notBetween" and type is not "custom", "list", or "none", this formula is used as the greater of two bounding values and MUST exist.
If operator is not "between" or "notBetween", or type is "custom", "list", or "none", this formula MUST NOT exist.
xm:sqref: A sqref element (section 2.4.5) that specifies ranges to which data validation is applied.
Attributes:
type: An ST_DataValidationType ([ISO/IEC29500-1:2011] section 18.18.21) attribute that specifies the type of data validation.
errorStyle: An ST_DataValidationErrorStyle ([ISO/IEC29500-1:2011] section 18.18.18) attribute that specifies the style of error alert used for this data validation.
imeMode: An ST_DataValidationImeMode ([ISO/IEC29500-1:2011] section 18.18.19) attribute that specifies the Input Method Editor (IME) mode enforced by this data validation.
