Import error no module named

from org.apache.poi.hssf.usermodel import *

I am getting import no module named hssf.
I am trying to parse an excel file found on the same directory as plugin.

For time being its just testing, I will use excel file later. However my first problem how can I solve the import error?

file = “test.xlsx”
fis = FileInputStream(file)
wb = HSSFWorkbook(fis)
sheet = wb.getSheetAt(0)
rows = sheet.getPhysicalNumberOfRows()

    cols = 0 # No. of columns
    tmp = 0
    for i in range(0, 10,1):
        row = sheet.getRow(i)
        if(row != None):
            tmp = sheet.getRow(i).getPhysicalNumberOfCells()
            if tmp > cols:
                cols = tmp
    message2 = IngestMessage.createMessage(IngestMessage.MessageType.DATA,"wb: ", wb)
    message3 = IngestMessage.createMessage(IngestMessage.MessageType.DATA,"row: ", rows)
    message4 = IngestMessage.createMessage(IngestMessage.MessageType.DATA,"cols: ", cols)
    for r in range(0, rows, 1):
        row = sheet.getRow(r)
        messag = IngestMessage.createMessage(IngestMessage.MessageType.DATA,"r: ", ""+r)
        if(row != None):
            for c in range(0, cols, 1):
                cell = row.getCell(c)
                if cell != None:
                    messag1 = IngestMessage.createMessage(IngestMessage.MessageType.DATA,"cell: ", ""+cell)


What is the exact module you are trying to import?