how i can make binary file to ascii converter

Answer 1

There is no such thing as a binary file, all files are stored as binary. What matters is the format. What we usually mean by binary is a binary executable, which is raw machine code, and can't be meaningfully converted to ASCII.

Answer 2

You can read the data from the binary file in the raw form and then rewrite the data via stream operators to a text file.
Note that this may lead to a change in file size.