Done

AbstractShopBusinessLogic/DinerBusinessLogic.csproj

@@ -9,6 +9,7 @@
   <ItemGroup>
     <PackageReference Include="DocumentFormat.OpenXml" Version="2.19.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+    <PackageReference Include="NPOI" Version="2.6.2" />
     <PackageReference Include="PdfSharp.MigraDoc.Standard" Version="1.51.15" />
   </ItemGroup>
 

AbstractShopBusinessLogic/Implements/SaveToExcel.cs

@@ -276,7 +276,7 @@ namespace DinerBusinessLogic.Implements
                 return;
             }
             _spreadsheetDocument.WorkbookPart!.Workbook.Save();
-            _spreadsheetDocument.Close();
+            _spreadsheetDocument.Dispose();
         }
     }
 }

AbstractShopBusinessLogic/Implements/SaveToWord.cs

@@ -116,7 +116,7 @@ namespace DinerBusinessLogic.Implements
 
             _wordDocument.MainDocumentPart!.Document.Save();
 
-            _wordDocument.Close();
+            _wordDocument.Dispose();
         }
 
         private Table? _lastTable;

Diner/DinerDatabaseImplements/Migrations/20240514100733_InitialCreate.Designer.cs

@@ -12,7 +12,7 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 namespace DinerDatabaseImplement.Migrations
 {
     [DbContext(typeof(DinerDatabase))]
-    [Migration("20240512174855_InitialCreate")]
+    [Migration("20240514100733_InitialCreate")]
     partial class InitialCreate
     {
         /// <inheritdoc />