## AddDigitalSignature function

Adds digital signature to an OOXML spreadsheet file (Excel2007 and later).

```go

func (instance *Workbook) AddDigitalSignature(digitalsignaturecollection *DigitalSignatureCollection)  error

```

## Remarks


## See Also

* Class [Workbook](../)
* Library [Aspose.Cells for Go](../../)