Replace "." (dot-comma) with "," (regular-comma) for MS Excel

Hi!

I've got a simple question:

How do I make double-vars fit into Excel?

I fprintf() some doubles into a txt-file, where the cells are divided by tabs.

But the problem is that the double's use "." for decimals. Excel on the other hand uses ",".

I guess there is a very easy solution to this, but which function should I use, and how? And which header-file should I include?

Thanks :-)

Excel uses "." on mine.....but often Europeans use "," to signify decimal places.........

My guess.......Start->Settings->Control Panel->Regional Options/Settings->Currency->Decimal Place.....

Change it to "."

Didn't help. I still have problems.

But isn't there any C-function to replace the "." with "," ?

Some sort of replace() or something?

Thanks again,

Torbjørn