<apex:page standardController="Export__c">
    <apex:includeLightning />
    <div id="LightningComponentid" />
    <script>
        var exportId = "{!$CurrentPage.parameters.id}";
        var isClassic = "{!$User.UIThemeDisplayed == 'Theme3'}";

        $Lightning.use("c:exportTrackerContainer", function() {
            $Lightning.createComponent("c:exportTrackerDownload",
            { 
                "exportId": exportId,
                "isClassic": isClassic
            },
            "LightningComponentid",
            function(cmp) {});
        });
    </script>
</apex:page>