Hyperstudy import FEKO .cfx file error. tips about :Input is not proper UTF-8, indicate encoding

when I drag the .cfx into the window of 'Define Models', click the 'Import Variables' show the error：

51 Error : Failed to parse file ( /wmyAltair/wmyhyperstudy/study_4/waveguide_pin_feed_placement.depx )

Error at line number 12 - Input is not proper UTF-8, indicate encoding !

Bytes: 0xB0 0xE6 0xB1 0xBE

 during Work.

I check the file it mention, I found this :

<?xml version='1.0' encoding='UTF-8'?>

<HW_Resources schema='altair_resource' schemaVersion='depx_v_2'>

  <CompanyInformation>

    <Copyright>COPYRIGHT (c) 1996-2023 Altair Engineering, Inc.</Copyright>

    <Email>hstsupport@altair.com</Email>

    <Phone>+1 (248) 614-2400</Phone>

    <Website>http://www.altair.com</Website&gt;

  </CompanyInformation>

  <DocumentProperties>

    <FileDate>2023-08-22 16:07:49</FileDate>

    <Author></Author>

    <System>Microsoft Windows [�汾 10.0.19045.3208]</System>

    <CreatedBy>cadfeko  2022.3.2-28592 - ( Lua 5.1 ) ( ver2018-07-17.1 )</CreatedBy>

  </DocumentProperties>

  <Resources>

    <Resource>

      <Comment></Comment>

      <Format>CADFEKO_cfx</Format>

      <Label>waveguide_pin_feed_placement.cfx</Label>

      <URILocal></URILocal>

      <URIOrigin>file://D:/wmyAltair/wmyhyperstudy/study_4/waveguide_pin_feed_placement.cfx</URIOrigin>

      <URIOriginHash></URIOriginHash>

      <URIRelPath>waveguide_pin_feed_placement.cfx</URIRelPath>

      <URIUsage>{hstModelDir}/waveguide_pin_feed_placement.cfx</URIUsage>

      <Usage>Input</Usage>

      <Varname></Varname>

      <Resources></Resources>

    </Resource>

  </Resources>

</HW_Resources>

12 line show some word problem. my computer's language is chinese, it seems like when the software running, it need to get the version about the windows, but the code make this error. 

how can i solve this problem