Hyperlinks are not appearing when exporting portlet to Excel.
This is caused by a limitation in Excel
There cannot be a single text value in a formula that exceeds 255 characters
If SSO and deeplinks are used, it is possible that the external link defined in properties.xml is greater than 255.
All supported versions of Clarity PPM
Currently there is no resolution/workaround as this is not a Clarity PPM issue but a limitation found in Excel.