Secure File Exchange From: Applies to: Overview Secure File Exchange (SFE) has been certified by the National Cyber Security Centre. It allows you to submit large files digitally rather than by post or email. SFE is supplied by Galaxkey, an online platform. You do not need to download any software to access it. SFE can be used to submit supporting documents in the following areas: Advocates Graduated Fee Scheme claims including special preparation Litigator Graduated Fee Scheme claims including special preparation Very high cost cases SFE can also be used to submit escape cases in the following areas: CRM18 police station