Pre_Open data from 11May2018.
You can download it from the below link
To export as csv 
https://howutrade.in/snapdata/?data=PreOpen_ALL_05Sep2018&export=csv
In the above link just change the required date in ddMMMyyyy format.
Make sure the date is a valid trading date and not holidays.
Thank you So much @HowUTrade For Providing This Data This Can Help Lot Of Beginners Specially Day Traders…
Thank you… i have been trying to get this data since long…
If you need Pre-open for FNO stocks, then try the below link
https://howutrade.in/snapdata/?data=PreOpen_FO_05Sep2018&export=csv
Other variants
Nifty 50 Stocks : https://howutrade.in/snapdata/?data=PreOpen_NIFTY_05Sep2018&export=csv
Nifty Bank Stocks : https://howutrade.in/snapdata/?data=PreOpen_NIFTYBANK_05Sep2018&export=csv
FNO Stocks : https://howutrade.in/snapdata/?data=PreOpen_FO_05Sep2018&export=csv
Other Stocks (Excl all above): https://howutrade.in/snapdata/?data=PreOpen_OTHER_05Sep2018&export=csv
Full List : https://howutrade.in/snapdata/?data=PreOpen_ALL_05Sep2018&export=csv
For Html Format (Example usage, to use in Excel WebQuery)
https://howutrade.in/snapdata/?data=PreOpen_ALL_05Sep2018
For Text Format
https://howutrade.in/snapdata/?data=PreOpen_ALL_05Sep2018&export=txt
For CSV Format
https://howutrade.in/snapdata/?data=PreOpen_ALL_05Sep2018&export=csv
*Data available from 13-May-2017 only
Hi, do you have all days starting 05Sep2018? The file I downloaded did not look like it is all days starting 2018Sep…
Thanks