hello

try like below code

import xlrd
import tempfile
import binascii
    
    @api.multi
    def your_method(self):
        fp = tempfile.NamedTemporaryFile(suffix=".xlsx")
        fp.write(binascii.a2b_base64(self.xls_file))
        fp.seek(0)
        workbook = xlrd.open_workbook(fp.name)
        sheet = workbook.sheet_by_index(0)
        for row_no in range(sheet.nrows):
            if row_no <= 0:
                fields = map(lambda row:row.value.encode('utf-8'), sheet.row(row_no))
            else:
                line = list(map(lambda row:isinstance(row.value, str) and row.value.encode('utf-8') or str(row.value), sheet.row(row_no)))
                print ("==========",line)  # in this line variable you get the value line by line from excel.