Cffile - Blank lines in Excel

Thank you all for the advise.

You were appending a second table to the first.
Solution: Use <cfsavecontent> and write your content into the Excel file.

<cfprocessingDirective pageencoding="utf-8">
<cfset setEncoding("form","utf-8")>
<cfquery name="GetScreen_Login" dataSource="VOCTEST">
select STR_EN, STR_FXK FROM VC_SCREEN_STR where STR_SECTION = 'LOGIN'
</cfquery>

<!--- Create table --->
<cfsavecontent variable="myExcelTable">
<table border="1" cellpadding="0" cellspacing="0">
<tr valign="top">
<td><b>Eng</b></td>
<td><b>Kor</b></td>
</tr>
<cfoutput query="GetScreen_Login">
<tr valign="top">
<td>#STR_EN#</td>
<td>#STR_FXK#</td>
</tr>
</cfoutput>
</table>
</cfsavecontent>

<!--- Write table to Excel File --->
<cffile action="write" file="D:\CustomerVoice\Test_Excel.xls" addnewline="no" charset = "utf-16" output="#myExcelTable#" />

You probably have too many table tags. For the entire file, you only need one at the start and one at the end.

Try using cfsavecontent to create your entire table and then output the resulting variable into your file.