Use DataGridView, set the virtual cache open excel file demonstration program.

datagridview_virtualmode(excel)\datagridview_virtualmode\bin\Debug\datagridview_virtualmode.exe
...............................\........................\...\.....\datagridview_virtualmode.pdb
...............................\........................\...\.....\datagridview_virtualmode.vshost.exe
...............................\........................\...\.....\datagridview_virtualmode.vshost.exe.manifest
...............................\........................\datagridview_virtualmode.csproj
...............................\........................\Form1.cs
...............................\........................\Form1.Designer.cs
...............................\........................\obj\x86\Debug\datagridview_virtualmode.csproj.FileListAbsolute.txt
...............................\........................\...\...\.....\datagridview_virtualmode.csproj.GenerateResource.Cache
...............................\........................\...\...\.....\datagridview_virtualmode.csprojResolveAssemblyReference.cache
...............................\........................\...\...\.....\datagridview_virtualmode.exe
...............................\........................\...\...\.....\datagridview_virtualmode.pdb
...............................\........................\...\...\.....\datagridview_virtualmode.Properties.Resources.resources
...............................\........................\...\...\.....\DesignTimeResolveAssemblyReferences.cache
...............................\........................\...\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
...............................\........................\Properties\AssemblyInfo.cs
...............................\........................\..........\Resources.Designer.cs
...............................\........................\..........\Resources.resx
...............................\........................\..........\Settings.Designer.cs
...............................\........................\..........\Settings.settings
...............................\datagridview_virtualmode.sln
...............................\........................\obj\x86\Debug\TempPE
...............................\........................\...\...\Debug
...............................\........................\bin\Debug
...............................\........................\obj\x86
...............................\........................\bin
...............................\........................\obj
...............................\........................\Properties
...............................\datagridview_virtualmode
datagridview_virtualmode(excel)

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