Dear Admin.
Many thanks for replying to my thread.
I have tried your wonderful product and I can conform it works for that I need.
Just moving aricles from J3 to J4.
Yes you are right. It can break my J4 site and it happend. But no worries as it runs on localhost.
Client has in J3 12 categories. Once articles are imported in J4 I just re-asign the articles to their correspondent categorie

So I can hereby confirm the following:
Problem 1) Is solved. Will do the import of the articles, than client will revise every article. Convert it into Yootheme format if he wishes and asigned it to the corresponding categorie
Problem 2) Found the correct code page and now the imported articles show correctly as here in spain they write with quite a lot of accents, é, á, í etc. So that part is resolved also

Problem 3) In J3 I limit the export by category. So each category has only 30-40 articles. so that works fine as well,
So I want to thank you very much for making this wonderfull little CFI plugin.
And If you have time and are intrested to develop this furter I am more than willing to try out you later and new version as well.
And lastly I was wondering if you don´t mind me sharing your plugin with some friends here in Madrid.
Many thanks again you saved me so much time.
Hoping to hear from you again.
Good weekend.
Regards,
Paco