def FixIt(infile,outfile):
   # reads infile, and copies all chars except non-text and '\r' to outfile
   try:
      f=open(infile,'rb')
      instring=f.read()
      f.close()
   except:
      print ('Cannot read: '+infile)
      return
   outstring=''
   nremoved=0
   for c in instring:
      if c==ord('\n') or c==ord('\t') or 32<=c<=127:
          outstring+=chr(c)
      else:
          nremoved+=1
   try:
      f=open(outfile,'w',newline='\n')
      f.write(outstring)
      f.close()
      print ('Wrote %s. Removed %d chars.' % (outfile,nremoved))
   except:
      print ('Could not write '+outfile)
   return