MongoToFile - MongoDB export to files »
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When you save session
Click "Save & Make Batch File"
Click "OK", you'll get batch file created, and you can run it in command line, like this:
C: cd "C:\Users\pan\AppData\Local\Programs\MongoToFile" MongoToFile session="C:\Users\pan\Documents\employees.uld" logfile="C:\Users\pan\Documents\employees.log"
Or click "Create & Schedule Task", you can run this batch file at a specific time and/or at a certain time every day. See this for detail: Schedule Task.