Change the file extension using C

Hi there,

I am working on a project where I need to change the extension of file using C. For example I want to change a ".dat" file and write it in the form of ".txt" file.

Can someone help me with this. I will be very thankful.

,,,

 

C doesn't care about file extensions.

Code:

FILE *in = fopen("file.dat","rb");
FILE *out= fopen("file.txt","w");

Then you can do whatever you want to read from the .dat file, and write to the .txt file.