[Deepoint]

Нашел на просторах.

static void CreateExcelFile(Args _args)
{
    SysExcelApplication sysExcelApplication;
    SysExcelWorkbooks   sysExcelWorkbooks;
    SysExcelWorkbook    sysExcelWorkbook;
    SysExcelWorksheet   sysExcelWorksheet;
    SysExcelRange       sysExcelRange;
    COM range;
    COM characters;
    ;
 
    sysExcelApplication = SysExcelApplication::construct();
    sysExcelApplication.visible(true);
    sysExcelWorkbooks = sysExcelApplication.workbooks();
    sysExcelWorkbook = sysExcelWorkbooks.add();
    sysExcelWorksheet = sysExcelApplication.activeSheet();
    sysExcelRange = sysExcelWorksheet.range('A1');
    range = sysExcelRange.comObject();
    characters = range.characters(1);
    characters.insert('Test');
}