Need XSL to fetch data to excel

Summary:

There is one attribute that contains value like the following - aa@@bb@@cc||11@@22@@33 . Now I have to read this attribute and parse this to write in excel. Excel should have the attribute content, || is the delimiter for rows and @@ is delimiter for columns.

So the excel content should look like below -

aa bb cc

11 22 33

Content (required):

Can anyone of you share the xsl for the above requirement.

Version (include the version you are using, if applicable):

22B

Code Snippet (add any code snippets that support your topic, if applicable):