Is there any app able to send apps or similar via bluetooth as Fexplorer for s60?

NO, as far as i know,such an app is not available for seri40. There's java-file- manager for Motorola but it's likely not suitable for seri4

so there's no way to send an app o game to other cell.
i can send only pics or vid ?
i think that there's the usual block on particular extensions, so we should find an app that is able to full-rename files to be able to send them :(

I don't think that's possible for s40, a trick you can do is to compress the app and send it to a bluetooth device, as long as it has zip support or a java app with zip support

no jar files are being seen in any java file manager, I have a folder 'Java' only with .jar files and in any file manager (like moby explorer) the folder is empty. I think nokia made a restriction to java apps.

i heard that in s40v5 we can rename the extensionsalso of the files.