open a file through c++

I am an AP student in high school and am currently working on a large program. I was wondering if it is possible to have my program open a file that is usually opened through the comand prompt.
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Try reading the FAQ.

which class? comp sci A or comp sci AB... or something else...

what type of "file" are you trying to open?

Hint<if your in windows>. try the windows API.... full of usefull features :)

If your program has permission to read the file, then there should be no problem opening it through fstream.

why not just use
#include <cstdlib>

system("Char array that equals the command you would write to open this file from the commandline" )

IE: System("C:\Something.exe");

Ok it may be C but it should work