Thanks for the reminder to check Strawberry (and perl) utilities occasionally.
Note: The character in question (\x96) is one of the differences between ISO-8859-1 and CP1252.
See the difference in the character starting at location 12. The savedfile is from the original post Regex: matching any Number then a hyphen.
C:\Users\Bill\forums\monks>xxd savedfile
00000000: 3132 3334 202d 2046 6f6f 0d0a 3536 3737 1234 - Foo..5677
00000010: 3820 9620 4261 720d 0a39 3939 392e 2042 8 . Bar..9999. B
00000020: 617a 0d0a az..
C:\Users\Bill\forums\monks>iconv -f ISO-8859-1 -t utf-8 savedfile > ou
+tfile.txt
C:\Users\Bill\forums\monks>xxd outfile.txt
00000000: 3132 3334 202d 2046 6f6f 0d0a 3536 3737 1234 - Foo..5677
00000010: 3820 c296 2042 6172 0d0a 3939 3939 2e20 8 .. Bar..9999.
00000020: 4261 7a0d 0a Baz..
C:\Users\Bill\forums\monks>iconv -f CP1252 -t utf-8 savedfile > outfil
+e.txt
C:\Users\Bill\forums\monks>xxd outfile.txt
00000000: 3132 3334 202d 2046 6f6f 0d0a 3536 3737 1234 - Foo..5677
00000010: 3820 e280 9320 4261 720d 0a39 3939 392e 8 ... Bar..9999.
00000020: 2042 617a 0d0a Baz..
Life was so much easier fifty years ago. Oh, there really were two keypunch codes.