Fit the whole device in the frame. Include its serial number label if you can.
Hold the code inside the frame.
Excel (.xls, .xlsx) or CSV. The first row holds the column names; Indonesian names such as Kode, Kategori, Merek, Tipe, Nama, Satuan and Harga work too.
Only the material code is required. Codes that already exist, and codes repeated in the file, are skipped. Existing materials are never changed.