How to Read Extracted Historical Data
CSV format
To check the CSV format, just extract provided files and open them in terminal, or Excel, or in any other preferred viewer.
Binary format
To check the quality of extracted historical data, take the following steps:
Step 1
Download Java and QDS APIs.
Launch the multiplexor locally.
Multiplexor launching
dxfeed-api\lib> java -jar qds-tools.jar multiplexor file:C:\Users\username\Desktop\TimeAndSale[readAs=raw_data,start=20190621-000000-0400,stop=20190621-230000-0400,speed=max] :6666 -c all-se
qds-tools.jar - needed lib multiplexor - needed command file:*****\Desktop\TimeAndSale - path to the binary file. start and stop - timeframe of reading speed=max - how quick the data will be flowing :6666 - port to connect
Step 2
Log on.
Find samples.
Use \c-api-5.5.2\bin\x86\CommandLineSample.exe to connect to the multiplexor.