fastest program to enumrate all combinations

[vs140580]

If i have numbers from 1 to 78 and want to find all possible 13 numbers at a time fastest way into file write


Kind help with a fastest algorithm so that i can obtain fast.

[Chervil]

You want to generate all possible combinations obtained by choosing 13 items from 78?
That will give a very large number of possibilities.

I'm not sure that any method of generating those 220495674290430 combinations will be very fast. It might take quite a large hard drive to hold the resulting file too.