GeneXus Office Module

It includes the following objects:

Scope

Generators: .NET, Java

Sample

event "Excel"

    //opens an excel sheet
    &excelSpreadsheet.Open("C:\testExcel\test.xlsx")

    //select a cell
    &excelcellrange = &excelSpreadsheet.Cell(1,2)

    //sets a value in the cell
    &excelcellrange.ValueText = "hidden"
    

    //sets the style of a cell
    &excelCellStyle = new()
    &excelCellStyle.Hidden = true
    &excelCellStyle.Indent = 5
    &excelCellStyle.Alignment.Horizontal = CellHorizontalAlignment.Left
    //sets the border in the style (diagonal down and bottom borders)
    &ExcelCellStyle.Border.DiagonalDown.Type = CellBorderType.DOUBLE
    &ExcelCellStyle.Border.DiagonalDown.Color.SetColorRGB(200,20,50)
    &ExcelCellStyle.Border.Bottom.Type = CellBorderType.DOUBLE
    &ExcelCellStyle.Border.bottom.Color.SetColorRGB(200,20,50)
    

    //sets the new style in the cell 
    &excelcellrange.SetCellStyle(&excelCellStyle)

    //saves the changes in the sheet and close
    &boolean =&excelSpreadsheet.Save()
    if &boolean
        &excelSpreadsheet.Close()
    else
        msg("Error code:"+&excelSpreadsheet.ErrCode.ToString())    
        msg("Error description:"+&excelSpreadsheet.ErrDescription.ToString())    
    endif

endevent

This module compared to Excel document data type

This module has more features to customize spreadsheets and workbooks than the ExcelDocument data type. But, on the other side, it does not support (by the design of the implementation on which it lies, called POI XSSF in Java) creating spreadsheets with thousands of rows and hundreds of columns.
You may use one or another depending on your needs.

Availability

This feature is available in the .NET Generator since GeneXus 18 Upgrade 5