Merge pull request #70 from SyncfusionExamples/ConvertXlsToXlsx

C# Example for converting XLS to XLSX format

Real Time Examples in Excel/ConvertXlsToXlsx/ConvertXlsToXlsx.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34310.174
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConvertXlsToXlsx", "ConvertXlsToXlsx\ConvertXlsToXlsx.csproj", "{291D0D7F-683B-47A2-9AFF-0BBD1E8548ED}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{291D0D7F-683B-47A2-9AFF-0BBD1E8548ED}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{291D0D7F-683B-47A2-9AFF-0BBD1E8548ED}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{291D0D7F-683B-47A2-9AFF-0BBD1E8548ED}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{291D0D7F-683B-47A2-9AFF-0BBD1E8548ED}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {5C3D7A03-6AD8-4FD0-8FC8-A24EE0450E13}
+	EndGlobalSection
+EndGlobal

Real Time Examples in Excel/ConvertXlsToXlsx/ConvertXlsToXlsx/ConvertXlsToXlsx.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="24.1.45" />
+  </ItemGroup>
+
+</Project>

Real Time Examples in Excel/ConvertXlsToXlsx/ConvertXlsToXlsx/Program.cs

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+using Syncfusion.XlsIO;
+
+
+namespace ConvertXlsToXlsx
+{
+    class Program
+    {
+        private static string inputPath = @"../../../Data/";
+
+        private static string outputPath = @"../../../Output/";
+        static void Main(string[] args)
+        {
+            string fileName = "Report.xls";
+
+            //Split the Excel document
+            ConvertXlsToXLSX(inputPath + fileName);
+        }
+        /// <summary>
+        /// Convert the Excel document from the given path
+        /// </summary>
+        /// <param name="filePath">Excel file path</param>
+        private static void ConvertXlsToXLSX(string filePath)
+        {
+            FileStream inputData = new FileStream(filePath, FileMode.Open, FileAccess.ReadWrite);
+
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Xlsx;
+                IWorkbook workbook = application.Workbooks.Open(inputData);
+                IWorksheets worksheets = workbook.Worksheets;
+
+                workbook.Version = ExcelVersion.Xlsx;
+
+                FileStream fileStream = new FileStream(outputPath + Path.GetFileNameWithoutExtension(filePath) + ".xlsx", FileMode.Create, FileAccess.ReadWrite);
+                workbook.SaveAs(fileStream);
+                fileStream.Close();
+            }
+        }
+    }
+}
+