HotXLS dokumentacija
Turinys Grąžina or sets the address of the target document. Read/write WideString TGridToXLS

Address: WideString;

].Hyperlinks[

Address: WideString;

].Hyperlinks[ Workbook.Sheets[

].Hyperlinks[

].Address := 

Workbook.Sheets[1].Hyperlinks[1].Address := 'http://www.loslab.com';