ALV -Excel download -header & data comming in Different columns

Hi,

I have an ALV report with FM.When I download it to excel through LIST/EXPORT/LOCALFILE some columns are getting messed up (ex: header is in one column and data is comming in different column).

When i do with LIST/EXPORT/SPREADSHEET option it is working fine.

but users want to use the first option only.

I am use FM's in this report.

Regards

Praveen