Secure File Upload Exchange files and data with Gerstco via ShareFile®, a secure data sharing service from Citrix I already have a Gerstco ShareFile folder Click the ShareFile button below to login to your ShareFile folder. ShareFile Request a Gerstco ShareFile folder If you are a Gerstco client and need to securely exchange data with us, fill out and submit this form. ShareFile will then email you instructions for accessing your folder.