The document discusses several file exchange solutions from Infotecs: 1) ViPNet VPN allows transferring encrypted files between computers over a secure VPN network. 2) ViPNet CryptoFile encrypts and signs files on one computer before transferring them through any channel to another computer for decryption and signature verification. 3) ViPNet B2B is a client-server solution that encrypts, signs, and transfers files over an unsecure channel.