Hello Manvitha,
since it is platform independent, there is no native file access available in Embedded Wizard. You will need to implement the code to access the file outside of Embedded Wizard. Then implement an interface between the GUI application and the extern code to exchange data between them. How to implement the communication between GUI application and the external software is explained in following sections:
Integrating with the device
Implementing a Device Interface
Best regards
Paul Banach
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