Excel Table creation sample

Create and Edit Table/ExcelTable/ExcelTable.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34414.90
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ExcelTable", "ExcelTable\ExcelTable.csproj", "{3AC8CBBD-68FB-485B-A202-35ABE6681BE6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{3AC8CBBD-68FB-485B-A202-35ABE6681BE6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3AC8CBBD-68FB-485B-A202-35ABE6681BE6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3AC8CBBD-68FB-485B-A202-35ABE6681BE6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3AC8CBBD-68FB-485B-A202-35ABE6681BE6}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {ED8871A2-860B-4E8F-9EFD-F92673F1AACB}
+	EndGlobalSection
+EndGlobal

Create and Edit Table/ExcelTable/ExcelTable/ExcelTable.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.XlsIO.Net.Core" Version="25.1.40" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Output\" />
+  </ItemGroup>
+
+</Project>

Create and Edit Table/ExcelTable/ExcelTable/Program.cs

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+using Syncfusion.XlsIO;
+
+namespace ExcelTable
+{
+    class Program
+    {
+        public static void Main()
+        {
+            Program program = new Program();
+            program.CreateTable();
+        }
+
+        /// <summary>
+        /// Creates a Excel table in the existing Excel document.
+        /// </summary>
+        public void CreateTable()
+        {
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Xlsx;
+                FileStream fileStream = new FileStream("../../../Data/SalesReport.xlsx", FileMode.Open, FileAccess.Read);
+                IWorkbook workbook = application.Workbooks.Open(fileStream, ExcelOpenType.Automatic);
+                IWorksheet worksheet = workbook.Worksheets[0];
+
+                AddExcelTable("Table1", worksheet.UsedRange);
+
+                string fileName = "../../../Output/SalesReport.xlsx";
+
+                //Saving the workbook as stream
+                FileStream stream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite);
+                workbook.SaveAs(stream);
+                stream.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Adds a table to the worksheet with the given name and range
+        /// </summary>
+        /// <param name="tableName">Table name</param>
+        /// <param name="tableRange">Table range</param>
+        public void AddExcelTable(string tableName, IRange tableRange)
+        {
+            IWorksheet worksheet = tableRange.Worksheet;
+
+            //Create table with the data in given range
+            IListObject table = worksheet.ListObjects.Create(tableName, tableRange);
+
+            //Set table style
+            table.BuiltInTableStyle = TableBuiltInStyles.TableStyleMedium14;
+        }
+    }
+}