The QuickC editor can use only text files. You tried to
load a file in an improper format:
■ binary file (.EXE, .COM, or .LIB files).
■ zero length file.
■ file with an extra carriage return at the end. Exit
QuickC and use the CRLF utility to fix this file.
■ Pre-existing version of a .LST file or a corrupted
.LST file. Generate a new listing file with QuickAssembler;
the new file is guaranteed to have the correct format.