For double-byte character set (DBCS) languages, the function changes full-width (double-byte) characters to half-width (single-byte) characters.
| Name | Type | Description |
| arg1 | string | The text or a reference to a cell containing the text to change. |
builder.CreateFile("xlsx");
var oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
oWorksheet.GetRange("A1").SetValue(oFunction.ASC("text"));
builder.SaveFile("xlsx", "ASC.xlsx");
builder.CloseFile();