function [msec,c,a,cwl,awl] = Read_ACSBin091(thisfile)

    disp(['Reading ' thisfile ' using Read_ACSBin...']);
    
    err = dos(['PREPACS acs091.dev ' thisfile ' prepacs.tmp +nul']);	
	
    
	[dat] = textread('prepacs.tmp','','delimiter','\t', 'headerlines',1);

	if ~isempty(dat)
		msec = dat(:,1);
		c = dat(:,2:85);
		a = dat(:,86:169);
	else
		[msec,a,c] = deal([])
    end
    
    % s/n 091
    cwl = [400.9 405.3 409.4 413.5 418.0 422.8 427.6 431.8 436.4 440.7 445.5 450.0 454.8 459.2 464.1 468.7 473.4 478.5 483.4 488.0 492.5 497.0 501.9 506.6 511.4 516.5 521.5 526.1 530.4 534.9 539.4 543.8 548.5 552.8 557.2 561.5 565.7 569.8 574.1 578.0 582.4 586.4 590.8 595.0 599.8 604.5 609.0 613.3 618.0 622.7 627.0 631.4 635.4 640.0 644.3 648.6 653.2 657.5 661.8 666.2 670.5 674.7 678.8 682.9 686.9 690.8 694.5 698.3 701.8 705.2 708.9 712.3 715.6 718.5 721.7 724.8 728.1 730.8 733.4 736.1 738.6 741.1 743.4 745.6];
    awl = [399.6 404.3 408.4 412.6 416.7 421.5 426.5 431.1 435.2 439.8 444.6 449.3 454.1 458.5 463.4 468.0 472.7 477.8 482.7 487.4 492.0 496.5 501.2 506.1 510.9 516.1 520.8 525.6 530.1 534.6 539.0 543.7 548.1 552.6 557.2 561.6 565.9 570.3 574.4 578.6 582.9 587.1 591.5 595.7 600.4 605.1 609.7 614.2 618.7 623.2 627.7 632.0 636.3 640.8 645.0 649.4 653.9 658.0 662.4 666.8 671.3 675.7 679.6 683.7 687.7 691.6 695.4 698.7 702.6 706.0 709.5 713.2 716.3 719.5 722.5 725.9 728.4 731.9 734.5 737.2 739.7 742.1 744.8 746.4];
return