So, if you want to send me any file with "uncommon extensions" (not just the usual .pdf, .doc,...), or an "non-standard pdf, doc, odt...", please send me it within a compressed package and protect it by password. Of course, do not forget to tell me which password you have used. Ensure the file list is encrypted. This is not the default option, and Google rejects even encrypted files if it can read the extensions inside. In Linux you can use 7-zip as
> 7z a -mhe=on -p archive.7z a_directory
Many thanks you for your understanding.
NOTE: I know how to distinguish a LaTeX template from a trojan. Anyhow, if you need to send me an attachment via the procedure above, a good explanation will be required. :)