Can i import nessus vulnerability scanner report?

Dear All

Hope you all are doing well.

Can anyone tell me how to import the Nessus vulnerability scanner report to protect my application until the vulnerabilities are fixed in F5 Big-IP WAF? I found the following URL, but couldn't understand it. 

Nessus 6 XSLT Conversion for ASM Generic Scanner Import | DevCentral

Thanks in advance.