C++ txt file update code(can't find it anywhere except my blog)

[KrissSachintha]

guys I tried to update txt records from c++ program so I just searched google for a code, their were lot of codes but they all wont work as we want, so I
somehow created this code and though it will be very useful for others too, so I posted the my blog post link
https://helageek.blogspot.com/2019/08/c-txt-file-data-update-code.html