Help for utf-8 output

I was wondering if anyone has similar experience and has come up with
good solutions to help solving the challenge below?!

What I have is an Excel spreadsheet for dissertations which I have saved
as a tab delimited file (examining the file in TextPad, the diacritics
appears to be fine), then read in and output the file as a utf-8 MARC
file. I  <print> title field confirming author field that contains
diacritics with the title showing proper indicator values. 

But when I looked the MARC itself, the fields that follow the field
containing diacritics are all off its original position. See attached
zip file.  Examples below: first two have diacritics in a 100 field,
last one diacritic is in 245 subfield b)

001     diss 34001
100 1  _aP<E9>rez, Nancy L.
245     _aSynchronic and Diachronic Matlatzinkan Phonology.

001     diss 34042
100 1  _aValent<ED>n-M<E1>rquez, Wilfredo
245     _aDoing being boricua :

001     diss 33892
100 1   _aDavis, Jennifer M.
245 14 _aThe Functional Complexities of Inherited Cardiac Troponin I
Mutations :
            _bIdentification of Ca<B2>+ Independent Contractile
Dysfunction.

I would be greatly appreciate any suggestion to solve this. Thank you
most kindly. 

Regards, 
 
--Jackie 
 
|Jackie Shieh 
|Data Loads & Development
|Harlan Hatcher Graduate Library
|University of Michigan
|920 North University
|Ann Arbor, MI 48109-1205
|Phone: 734.763.6070 FAX: 734.615.9788
|E-mail: JShieh [AT] umich [DOT] edu