Update README.md

Author: milaan9

README.md

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 ## Introduction 👋
 
-Python too supports file handling and allows users to handle files i.e., to read and write files, along with many other file handling options, to operate on files. The concept of file handling has stretched over various other languages, but the implementation is either complicated or lengthy, but alike other concepts of Python, this concept here is also easy and short. Python treats file differently as text or binary and this is important.Python too supports file handling and allows users to handle files i.e., to read and write files, along with many other file handling options, to operate on files. The concept of file handling has stretched over various other languages, but the implementation is either complicated or lengthy, but alike other concepts of Python, this concept here is also easy and short. Python treats file differently as text or binary and this is important.
+Python file I/O (a.k.a File handling) is one of the essential topics for programmers and automation testers. It is required to work with files for either writing to a file or read data from it.
+
+Also, if you are not already aware, I/O operations are the costliest operations where a program can stumble. Hence, you should be quite careful while implementing file handling for reporting or any other purpose. Optimizing a single file operation can help you produce a high-performing application or a robust solution for automated software testing.
+
+In Python, file processing takes place in the following order.
+
+* Open a file that returns a filehandle.
+* Use the handle to perform read or write action.
+* Close the filehandle.
+
+Before you do a read or write operation to a file in Python, you need to open it first. And as the read/write transaction completes, you should close it to free the resources tied with the file.
 
 
 ## Table of contents 📋