CRM/CoreFilecivicrm_fileData store for uploaded (attached) files (pointer to file on disk OR blob). Maybe be joined to entities via custom_value.file_id or entity_file table.1.5true id int unsigned true Unique ID Number 1.5 id true file_type_id int unsigned Type of file (e.g. Transcript, Income Tax Return, etc). FK to civicrm_option_value. file_type Select 1.5 mime_type varchar 255 mime type of the document 1.5 uri varchar 255 uri of the file on disk 1.5 document mediumblob contents of the document 1.5 description varchar 255 Additional descriptive text regarding this attachment (optional). 1.5 upload_date datetime Date and time that this attachment was uploaded or written to server. 1.5 created_id int unsigned FK to civicrm_contact, who uploaded this file Created By 5.3 created_id civicrm_contact id 5.3 SET NULL