                 switch column {
                 case 0:
                     if row < recoilsFrontPerAct.count {
-                        if let eventNumberObject = getValueFrom(array: recoilsFrontPerAct, row: row, key: kEventNumber) as? CLongLong {
+                        if let eventNumberObject = getValueFrom(array: recoilsFrontPerAct, row: row, key: kEventNumber) as? CUnsignedLongLong {
                             field = currentFileEventNumber(eventNumberObject)
                         }
                     }

                    }
                case 20:
                    if row < alpha2FrontPerAct.count {
                        if let eventNumber = getValueFrom(array: alpha2FrontPerAct, row: row, key: kEventNumber) as? CLongLong {
                            field = currentFileEventNumber(eventNumber)
                        }
                    }

                    }
                case 5:
                    if row < fissionsAlphaFrontPerAct.count {
                        if let eventNumber = getValueFrom(array: fissionsAlphaFrontPerAct, row: row, key: kDeltaTime) as? CUnsignedLongLong {
                            field = currentFileEventNumber(eventNumber)
                        }
                    }
