Rounds a number down to the nearest multiple of significance.
| Name | Type | Description |
| arg1 | number | Is the numeric value you want to round. |
| arg2 | number | Is the multiple to which you want to round. Number and Significance must either both be positive or both be negative. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.FLOOR(5.786, 0.7));
builder.SaveFile("xlsx", "FLOOR.xlsx");
builder.CloseFile();