Different language for uploading

Hi all,

We have an inbound file to create customer data. The name and address are in Thailand language. We are going to load to the SAP with logon language is in English.

We use GUI_UPLOAD when looking the data in internal table, the Thailand character can no be recognized.

Our requirement is to that SAP must be able to upload the Thailand character (name and address of the customer).

Is the data looked in the internal (in unrecognize format) will be able to be uploaded in Thailand character? or it has to log on using Thailand language so that our name and customer address can be in Thailand character?

Any idea please help me. We will also have another inbound file from Taiwan.

Thanks a lots

Alia