Fehler beim Ausführen des Makros 'viewxls' com.atlassian.confluence.macro.MacroExecutionException:

[Akira Itashi]

i wanna display an excel table in confluence page via api using postman. The excel table is already uploaded in the page as attachment. i used this body request : 

{

    "type": "page",

    "title": "Page title",

    "ancestors": [{ "id": 0 }],

    "space": { "key": "~username" },

    "body": {

        "storage": {

            "value": "<ac:structured-macro ac:name='viewxls'><ac:parameter ac:name='name'>AdUser.xlsx</ac:parameter></ac:structured-macro>",

            "representation": "storage"

        }

    },

    "version": {

        "number": 5

    }

}