I'm unable to open a local file in Safari using Swift's `openUrl()` function which keeps returning `false`:

```
let url = URL(string:"file:///Users/kiwitech/Library/Developer/CoreSimulator/Devices/FFA6761D-D98B-4C41-ACEF-18249F297897/data/Containers/Data/Application/82EF4E60-F9E9-434B-B86B-0391052D1E6E/Documents/proposals_dataxlsx.xlsx");

print("Local URL",url)
if UIApplication.shared.canOpenURL(url!) {
    if #available(iOS 10.0, *) {
        UIApplication.shared.open(url!, options: [:],completionHandler: {
            (success) in
            print("Open  \(success)")
        })
    } else {
        UIApplication.shared.openURL(url!)
    }
}

```