On a old house 70 years old. If they cannot pull electrical wires through
The conduit even with a pull string. What do they do knock down the walls
Or is there some special tool?

Is the house actually all conduit? This would be odd for a house of that age.

I think the house was built in 1960. The electrician couldn't pull the old wires out
Of the metal pipe?

Check for attic access.

It is a ranch style house in Florida

Are you sure it is conduit and not "BX"?

It is a ranch style house in Florida
It's not pipe. And you will not be able to pull out the old wiring, it is secured to the framing before the wall finish goes up.

What are you trying to do?

Just my neighbor. I saw the metal pipe with the wires coming out. They tried
To pull them. But they Wouldn't move