Correctly check whether field should be saved as data field.
Correctly check whether field should be saved as data field.

igitur/ClosedXML,ClosedXML/ClosedXML,jongleur1983/ClosedXML,clinchergt/ClosedXML,JavierJJJ/ClosedXML,b0bi79/ClosedXML,vbjay/ClosedXML