To be honest , I didn't hit upon an idea of saving the files Anyway , it works and to anyone interested ,voice files are .wav .

Thank you KiwiJochen , maikelnai , nomad for the advices .

One more question , because I don't wanna do the new topic ...
If I want to replace the english voices ,which database is used to speak in v29.1 software ? I mean , if I choose the gb female the database is "modern type " , but if I choose gb voice male it's written that it's an old database format ... I don't know if it has any influence ,but so far I've spotted that in the old type there are only 149 words and in the new database type there are 324 words , so I don't know which one should I edit .

Greets,
Refugee