file fixed length record
file variable-length record
fixed length record file
fixed-length record file
FQL File Qualifier Length
random file of fixed length record
variable-length record file
keyed file file access system
FDFS File Descriptor File System
file allocation table file system FAT
tape file-to-tape file transfer
anchorage length and lap length
long-length or extra length charge
multi-length optical orthogonal code multi-length