Need Help: Export to excel - from a purchase voucher, Item Name and Batch Name

I have added this code to add button to purchase and sales voucher

[#Form: Voucher]
Add : Button : MMSReport2021
[Button : MMSReport2021]
Key : ALT + 2
Title : "Serials"
Action : Display : MMSReport2021
[Report: MMSReport2021]
Form : MMSReport2021
[Form : MMSReport2021]
Part : MMSReport2021
Height : @@InvHeight inch
Width : @@InvWidth inch
[Part : MMSReport2021]
Line : ItemExport, HiLine1
Repeat : ItemExport : Batch Allocations
[Line : ItemExport]
Field : ItemExport1, ItemExport2, ItemExport3
[Field : ItemExport1]
Use : Name Field
Set as : $Name
Width : 70
[Field : ItemExport2]
Use : Name Field
Set as : $BatchName
Width : 20
[Field : ItemExport3]
Use : Name Field
Set as : "Hi - Test Field - If This is Printing Meaning not fatching proper batch Fields"
Width : 100
[Line : Hiline1]
Field : Hifield1
[Field : Hifield1]
Use : Name Field
Set As : "Hi - Test Line - If This is Printing Meaning Only Line ItemExport is not Printing"
Width : 100

above code is not working, i'am not sure why

Now what i need is when I press this button, report directly get exported to an excel file, which contains only Four column of data, First column containing ITEM NAME, Second column containing BATCH NAME, Third Column containing Voucher Number and Fourth Column containing Voucher Date, no other data is required except mentioned