not very sure~just learnt from a friend who had gone through such test.
but he said the questions related to WORD and EXCEL are very detailed-oriented, as they aimed to check whether you have mastered every facet of MS.
i guess you must sit for the test at agency at first. if you pass, the consultant will refer you to the employer~
i have sent out some application for such position, but all of them have failed. hehe, see, you are capable and smart if you have this opportunity. good luck.