System.Activities System.Activities.Statements System.Activities.Expressions System.Activities.Validation System.Activities.XamlIntegration Microsoft.VisualBasic Microsoft.VisualBasic.Activities System System.Collections System.Collections.Generic System.Data System.Diagnostics System.Drawing System.IO System.Linq System.Net.Mail System.Xml System.Xml.Linq UiPath.Core UiPath.Core.Activities System.Windows.Markup System.Runtime.Serialization UiPath.Database System.ComponentModel System.Xml.Serialization UiPath.Excel.Activities UiPath.Excel System.Collections.ObjectModel System.Activities.DynamicUpdate System.Reflection System.Runtime.InteropServices UiPath.DataTableUtilities System.Activities Microsoft.VisualBasic mscorlib System.Data System.Data.DataSetExtensions System System.Drawing System.Core System.Xml System.Xml.Linq PresentationFramework WindowsBase PresentationCore System.Xaml UiPath.System.Activities UiPath.UiAutomation.Activities System.Runtime.Serialization UiPath.System.Activities.Design System.ServiceModel Microsoft.Bcl.AsyncInterfaces System.ValueTuple System.ComponentModel.Composition System.Memory NPOI UiPath.Cryptography UiPath.Python UiPath.Database UiPath.Studio.Constants UiPath.Excel.Activities UiPath.Excel.Activities.Design UiPath.Excel System.Reflection.Metadata System.Data.Entity True True [sum] 0 True [sum] [sum+Cint(CurrentRow("ColumnA").ToString)] [CurrentRow("ColumnB")] [sum]