Remove Last 3 element from array

 string[] arrCmbMissingVal = strCmbMissingValue.Split(' ');

                    string[] arrStrCmb = new string[arrCmbMissingVal.Length - 3];
                    Array.Copy(arrCmbMissingVal, arrStrCmb, arrCmbMissingVal.Length - 3);
                    strSplitedCmbDesc = string.Join("", arrStrCmb);
                    strCmbMissingDataType = arrCmbMissingVal[arrCmbMissingVal.Length - 1];