When I am exporting a collection from compass in JSON format the fileds are exported as shown below

 
    "last_scraped": {
        "$date": 

{             "$numberLong": "1550466000000"         }

    }
 
This is causing System.FormatException in c# driver whan I am trying to convert this to a BSON object using BsonDocument.Parse() method.
 
But if I use mongoexport tool to export a collection the date fields are exported as shown below 
 
    "last_scraped": 

{         "$date": "2019-02-16T05:00:00Z"     }

 
The above is perfectly working fine with the BsonDocument.Parse() method.
 
Please update the compass import/export functionality.