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Syncfusion .NET Excel library supports preserving macros from input Excel files and saves them as macro enabled files. However, it does not support creation of Excel files with macros or VBA. Steps to open and save Excel files with macros: Step 1: Create a macro using Microsoft Excel application and save the file. Step 2: Open the saved file using Syncfusion Essential XlsIO.
C# using Syncfusion.XlsIO;
VB.NET Imports Syncfusion.XlsIO
C# //Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
//Instantiate the Excel application object
IApplication application = excelEngine.Excel;
//Set the application default version
application.DefaultVersion = ExcelVersion.Excel2016;
//Load an existing Excel macro workbook into IWorkbook
IWorkbook workbook = application.Workbooks.Open("../../Sample.xlsm");
//Get the first worksheet in the workbook into IWorksheet
IWorksheet worksheet = workbook.Worksheets[0];
//Modify the cell content in the worksheet
worksheet.Range["A2"].Text = "Cell content modified using XlsIO";
worksheet.Range["A2"].CellStyle.Font.Bold = true;
//Save the Excel document
workbook.SaveAs("Output.xlsm");
}
VB.NET 'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine()
'Instantiate the Excel application object
Dim application As IApplication = excelEngine.Excel
'Set the application default version
application.DefaultVersion = ExcelVersion.Excel2016
'Load an existing Excel macro workbook into IWorkbook
Dim workbook As IWorkbook = application.Workbooks.Open("../../Sample.xlsm")
'Get the first worksheet in the workbook into IWorksheet
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Modify the cell content in the worksheet
worksheet.Range("A2").Text = "Cell content modified using XlsIO"
worksheet.Range("A2").CellStyle.Font.Bold = True
'Save the Excel document
workbook.SaveAs("Output.xlsm")
End Using
A complete working sample to open a macro enabled Excel document and resaving it with some changes, can be downloaded from Open and Save Macro Enabled Excel file.zip. Note: Support for editing macros in Excel document will be provided in our future releases.
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