use strict; my X_info = 3; my Y_info = -4; my Z_info = 5; ###### want to replace 3 with X_info, -4 with Y_info, 5 with Z_info ################################## open(DLOG, '<' 'D:\PROJ\N123_X3\dataInfo_X-4_Y5_decode.csv') or die "we have a problem: $!"; print "It Works.\n" close (DLOG);