How to convert bytes to a string in Python, and how can I improve my code?

I am working on a Python project that involves reading data from a binary file, which is returned as a bytes object. I need to convert this bytes object to a string for further processing. Currently, I am using the decode() method to convert the bytes to a string, but I am not sure if this is the most efficient method. Here’s my current code:

Is there a better way to convert bytes to strings in Python? How can I improve my code to make it more efficient? Any suggestions or help would be greatly appreciated!