Question: Trouble running package EKHAD from A=B

The EKHAD package from the book A=B (https://www2.math.upenn.edu/~wilf/AeqB.html) contains many effective algorithms. I want to use one of them in Maple, but I have troubles with the command `read`.

I saved the file from this link: https://sites.math.rutgers.edu/~zeilberg/tokhniot/EKHAD and followed the instructions at the beggining:
    #######################################################################
    ## EKHAD: Save this file as EKHAD. To use it, stay in the             #
    ## same directory, get into Maple (by typing: maple <Enter> )         #
    ## and then type:  read EKHAD : <Enter>                               #
    ## Then follow the instructions given there                           #
    ##                                                                    #
    ## Written by Doron Zeilberger, Rutgers University ,                  #
    ##  zeilberg@math.rutgers.edu.                                        # 
    #######################################################################

 After running the EKHAD file, I got:

     Last update: April 26, 2018, thanks to Daniel G. DuParc

       Previous updates:   Dec. 11, 2015 (adding procedures AZdI, 

        AZcI ); May 30, 2015 (adding procedure TerryTao )


                  May 29, 2014 (adding Ekhad )

              Version of July 2003: adapted to Maple 8 and 9 

                   Many thanks to Drew Sills

         In the penultimate Version of Feb 25, 1999 a suggestion

         of Frederic Chyzak was used, with considerable 

                speed-up. We thank him SO MUCH!


             The penpenultimate version, Feb. 1997,

      corrected a subtle bug discovered by Helmut Prodinger


           Previous versions benefited from comments by Paula Cohen, 

                 Lyle Ramshaw, and Bob Sulanke.


            This is EKHAD, One of the Maple packages

                     accompanying the book 

                             "A=B" 

          (published by A.K. Peters, Wellesley, 1996) 

      by Marko Petkovsek, Herb Wilf, and Doron Zeilberger.


        The most current version is available on WWW at:

            http://www.math.rutgers.edu/~zeilberg .

       Information about the book, and how to order it, can be found in

       http://www.central.cis.upenn.edu/~wilf/AeqB.html .

     Please report all bugs to: zeilberg@math.rutgers.edu .

            All bugs or other comments used will be acknowledged in future

                           versions.


    For general help, and a list of the available functions,

     type "ezra();". For specific help type "ezra(procedure_name)" 

           NULL;
 

Then I opened new document in same directory as in instructions and typed `read EKHAD.mw`, but I got the following error:


Error, on line %1, syntax error, character `?` unexpected:
<?xml version="1.0" encoding="UTF-8"?>
 ^

Error, while reading `%1`


I don't know what this error means and how to fix it. For both errors, after clicking on them, It sends me to the website where it says:

There is no help page available for this error

Sorry, we do not have specific information about your error. 

Thank you very much for your help. 

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