diff --git a/Directory.Packages.props b/Directory.Packages.props
index f4b8941..04f52d4 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -35,7 +35,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="Moq.AutoMock" Version="3.5.0" />
-    <PackageVersion Include="NPOI" Version="2.7.4" />
+    <PackageVersion Include="NPOI" Version="2.7.5" />
     <PackageVersion Include="Serilog" Version="4.3.0" />
     <PackageVersion Include="Serilog.Extensions.Hosting" Version="9.0.0" />
     <PackageVersion Include="Serilog.Sinks.Console" Version="6.0.0" />
diff --git a/PhoneAssistant.Cli/BaseImport.cs b/PhoneAssistant.Cli/BaseImport.cs
index ac87146..4431c7a 100644
--- a/PhoneAssistant.Cli/BaseImport.cs
+++ b/PhoneAssistant.Cli/BaseImport.cs
@@ -14,7 +14,7 @@ public static async Task ExecuteAsync(FileInfo baseFile)
         Log.Information("Importing EE Base report from {0}", baseFile.FullName);
 
         using FileStream? stream = new(baseFile.FullName, FileMode.Open, FileAccess.Read);
-        using IWorkbook workbook = WorkbookFactory.Create(stream, readOnly: true);
+        using IWorkbook workbook = WorkbookFactory.Create(stream);
         ISheet sheet = workbook.GetSheetAt(0);
         IRow header = sheet.GetRow(0);
         ICell cell = header.GetCell(0);
diff --git a/PhoneAssistant.Cli/Knox.cs b/PhoneAssistant.Cli/Knox.cs
index 97c29ab..ef55057 100644
--- a/PhoneAssistant.Cli/Knox.cs
+++ b/PhoneAssistant.Cli/Knox.cs
@@ -41,7 +41,7 @@ public static void Execute(DirectoryInfo workFolder)
         HashSet<string> imeiSet = [.. activeSIMs.Select(sim => sim.IMEI_MEID)];
 
         using FileStream stream = new(ciFile.FullName, FileMode.Open, FileAccess.Read);
-        using IWorkbook workbook = WorkbookFactory.Create(stream, readOnly: true);
+        using IWorkbook workbook = WorkbookFactory.Create(stream);
         ISheet ciSheet = workbook.GetSheetAt(0);
 
         IRow headerRow = ciSheet.GetRow(ciSheet.FirstRowNum);
diff --git a/Reconcile/ImportMS.cs b/Reconcile/ImportMS.cs
index 8d17aa7..ef3995c 100644
--- a/Reconcile/ImportMS.cs
+++ b/Reconcile/ImportMS.cs
@@ -29,7 +29,7 @@ public Result<List<Device>> Execute()
         try
         {
             using FileStream stream = new(importFile, FileMode.Open, FileAccess.Read);
-            using IWorkbook workbook = WorkbookFactory.Create(stream, readOnly: true);
+            using IWorkbook workbook = WorkbookFactory.Create(stream);
 
             Result<ISheet> resultSheet = Import.IsValidSheet(workbook, SheetName, CheckValue, A1);
             if (resultSheet.IsFailed)
diff --git a/Reconcile/ImportSCC.cs b/Reconcile/ImportSCC.cs
index 809ae9b..28bcbd5 100644
--- a/Reconcile/ImportSCC.cs
+++ b/Reconcile/ImportSCC.cs
@@ -28,7 +28,7 @@ public Result<List<Disposal>> Execute()
         try
         {
             using FileStream stream = new(importFile, FileMode.Open, FileAccess.Read);
-            using IWorkbook workbook = WorkbookFactory.Create(stream, readOnly: true);
+            using IWorkbook workbook = WorkbookFactory.Create(stream);
 
             Result<ISheet> resultSheet = Import.IsValidSheet(workbook, SheetName, CheckValue, A2);
             if (resultSheet.IsFailed) return Result.Fail(resultSheet.Errors);