No such file or directory

[Mimi Cafe]

my script is in the same directory as my files, but it cannot find the file
ABC.txt in open() below.

foreach my $supplied (@ARGV){
 # Output file name set of element currently processed.

 # Open file to read from.
 open (INPUTFILE, "<", "$supplied") or die "Could not open $supplied: $!\n";
# Error: No such file or directory.
}

Any help

Mimi