diff --git a/ENI2/Excel/ExcelUtil.cs b/ENI2/Excel/ExcelUtil.cs
index c270ec97..4eb0c169 100644
--- a/ENI2/Excel/ExcelUtil.cs
+++ b/ENI2/Excel/ExcelUtil.cs
@@ -2147,7 +2147,7 @@ namespace ENI2.Excel
                     if (canceled) return true;
                     if (crew.CrewMemberIdentityDocumentIssuingState.IsNullOrEmpty() && isOldVersion)
                         crew.CrewMemberIdentityDocumentIssuingState = "XX";
-                    crew.CrewMemberIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("N{0}", i + 18));
+                    crew.CrewMemberIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("N{0}", i + 18)) ?? (DateTime?)new DateTime(2100, 12, 31);
                     if (!crew.CrewMemberIdentityDocumentExpiryDate.HasValue && isOldVersion)
                         crew.CrewMemberIdentityDocumentExpiryDate = new DateTime(2100, 12, 31);
 
@@ -2263,7 +2263,7 @@ namespace ENI2.Excel
                     if (canceled) return true;
                     if (crewd.CrewMemberIdentityDocumentIssuingState.IsNullOrEmpty())
                         crewd.CrewMemberIdentityDocumentIssuingState = "XX";
-                    crewd.CrewMemberIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("N{0}", i + 18));
+                    crewd.CrewMemberIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("N{0}", i + 18)) ?? (DateTime?)new DateTime(2100, 12, 31);
 
                     crewd.Effects = reader.ReadCellAsText("2. PORT", string.Format("C{0}", i + 142), 256);                    
 
@@ -2523,7 +2523,7 @@ namespace ENI2.Excel
                     if (canceled) return true;
                     pas.PassengerIdentityDocumentId = reader.ReadCellAsText(sheetTitle, string.Format("N{0}", i + 18), 100);
 
-                    pas.PassengerIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("P{0}", i + 18));
+                    pas.PassengerIdentityDocumentExpiryDate = reader.ReadCellAsDateTime(sheetTitle, string.Format("P{0}", i + 18)) ?? (DateTime?)new DateTime(2100, 12, 31); ;
 
                     pas.PassengerVisaNumber = reader.ReadCellAsText(sheetTitle, string.Format("Q{0}", i + 18), 100);
                     pas.EmergencyCare = reader.ReadCellAsText(sheetTitle, string.Format("R{0}", i + 18), 255);