Cffile action="write" adding empty lines into my txt - coldfusion

Question

Using ColdFusion I am updating the top line of my txt file, however once I do this it adds an empty line after each line in my txt file and I have no idea why.
A breakdown of my code is as follows:
<!---CSV FILE--->
<cffile action="read" file="C:/ColdFusion10/cfusion/wwwroot/kelly2/debitorders.csv" variable="csvfile">
<cfoutput>
<!---LOOP THROUGH CSV FILE--->
<cfloop index="index" list="#csvfile#" delimiters="#chr(10)##chr(13)#">
<!---SET VALUES--->
<!---TRIM VALUES--->
<!---SET STRING LENGTH FOR EACH--->
<!---SET TOTAL STRING--->
<!---IF FILE FOR BANK EXISTS--->
<cfif FileExists(ExpandPath("#listgetAt('#index#',5)#.txt"))>
<!---READ EXISTING FILE HEADER--->
<cffile action="read" file="C:/ColdFusion10/cfusion/wwwroot/kelly2/#bankname#.txt" variable="bankheader">
<!---SPLIT UP THE HEADER TO ADD NEW VALUES ONTO IT--->
<cfset numericvalue = listfirst(bankheader,chr(13))>
<cfset numericvalue = #Right(numericvalue, 13)#>
<cfset RecordCountvalue = #Left(numericvalue, 3)#>
<cfset RecordCountvalue = #RecordCountvalue# + 1>
<cfset RecordCountvalue = #NumberFormat(RecordCountvalue,"000")#>
<cfset RecordCountvalue = #Left(RecordCountvalue, 3)#>
<cfset RecordCountvalue = #RJustify(RecordCountvalue, 3)#>
<cfset TotalRecordvalue = #Right(numericvalue, 10)#>
<cfset TotalRecordvalue = (#TotalRecordvalue# + #amount#) * 100000>
<cfset TotalRecordvalue = #NumberFormat(TotalRecordvalue,"0000000000")#>
<cfset TotalRecordvalue = #Left(TotalRecordvalue, 10)#>
<cfset TotalRecordvalue = #RJustify(TotalRecordvalue, 10)#>
<!---SET HEADER FOR FILE--->
<cfset fileheader_bank = "#UCase(bankname)#">
<cfset fileheader_bank = "#Left(fileheader_bank, 15)#">
<cfset fileheader_bank = "#LJustify(fileheader_bank, 16)#">
<cfset newfile_header = "#fileheader_bank##RecordCountvalue##TotalRecordvalue#">
<!---APPEND FILE AND ADD UPDATED HEADER--->
<cfset bankheader = listSetAt(bankheader,1,"#newfile_header#","#chr(13)#")>
<cffile action="write" file="#getDirectoryFromPath(getTemplatePath())#/#listgetAt('#index#',5)#.txt" output="#bankheader#">
<!---APPEND FILE AND ADD NEW ENTRY--->
<cffile action = "append"
file = "C:/ColdFusion10/cfusion/wwwroot/kelly2/#listgetAt('#index#',5)#.txt"
output = "#total_string#">
</cfif>
</cfloop>
</cfoutput>
I am pretty sure the problem is in one of these cffile tags.
<!---APPEND FILE AND ADD UPDATED HEADER--->
<cfset bankheader = listSetAt(bankheader,1,"#newfile_header#","#chr(13)#")>
<cffile action="write" file="#getDirectoryFromPath(getTemplatePath())#/#listgetAt('#index#',5)#.txt" output="#bankheader#">
<!---APPEND FILE AND ADD NEW ENTRY--->
<cffile action = "append"
file = "C:/ColdFusion10/cfusion/wwwroot/kelly2/#listgetAt('#index#',5)#.txt"
output = "#total_string#">
I have removed a lot of the unnecessary but if you need any of it please let me know.

Answer 1

If you used CFScript you would not have the issue. Because your using ColdFusion Tags returns and spaces affect document layout. Try minifiying your code to remove any floating returns / spaces. I have run into this issue with creating PDF files in CF