Interact to achieve c# and excel, you can set the c# code to the validity of data

excelTest\excelTest\bin\Debug\excelTest.dll
.........\.........\...\.....\excelTest.dll.manifest
.........\.........\...\.....\excelTest.pdb
.........\.........\...\.....\excelTest.vsto
.........\.........\...\.....\excelTest.xlsx
.........\.........\excelTest.csproj
.........\.........\excelTest.csproj.user
.........\.........\excelTest.xlsx
.........\.........\excelTest_TemporaryKey.pfx
.........\.........\obj\Debug\excelTest.csproj.FileListAbsolute.txt
.........\.........\...\.....\excelTest.csproj.GenerateResource.Cache
.........\.........\...\.....\excelTest.dll
.........\.........\...\.....\excelTest.pdb
.........\.........\...\.....\excelTest.Properties.Resources.resources
.........\.........\...\.....\excelTest.Sheet1.resources
.........\.........\...\.....\ResolveAssemblyReference.cache
.........\.........\Properties\AssemblyInfo.cs
.........\.........\..........\Resources.Designer.cs
.........\.........\..........\Resources.resx
.........\.........\..........\Settings.Designer.cs
.........\.........\..........\Settings.settings
.........\.........\Sheet1.cs
.........\.........\Sheet1.Designer.cs
.........\.........\Sheet1.Designer.xml
.........\.........\Sheet1.resx
.........\.........\Sheet2.cs
.........\.........\Sheet2.Designer.cs
.........\.........\Sheet2.Designer.xml
.........\.........\Sheet3.cs
.........\.........\Sheet3.Designer.cs
.........\.........\Sheet3.Designer.xml
.........\.........\ThisWorkbook.cs
.........\.........\ThisWorkbook.Designer.cs
.........\.........\ThisWorkbook.Designer.xml
.........\excelTest.sln
.........\excelTest.suo
.........\.........\obj\Debug\TempPE
.........\.........\bin\Debug
.........\.........\obj\Debug
.........\.........\bin
.........\.........\obj
.........\.........\Properties
.........\excelTest
excelTest

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