internal void DeleteMe()
{
if (RelationshipID != null)
{
WorkSheet.DeleteNode($"d:tableParts/d:tablePart[@r:id='{RelationshipID}']");
}
if (TableUri != null && WorkSheet._package.ZipPackage.PartExists(TableUri))
{
WorkSheet._package.ZipPackage.DeletePart(TableUri);
}
}