Microsoft Excel users can now easily sign documents, such as offers or cost calculations, directly from Excel. With a few clicks, you can sign the document yourself or invite others to sign. Once the signing process is completed, you can download the signed document via DeepSign or the sidebar.
The DeepSign add-in is also available when working with Excel online, for example, in SharePoint or OneDrive.

Visit Microsoft AppSource to download the add-in or install it directly from Excel as depicted in this short video. Please note that the installation path might depend on your device (Microsoft/iOS).