thanks for the repay, my situation is now I am working in the company for 1 and half year after graduating from Canadian university. it is my only work experience in my life. should I put the same material for those two letter?
my offer shows how much I got paid and the benefits as well.
There are 2 types of "job offer" letters.
One is the offer you received before you started work. The letter proves NOTHING about what you actually did after the date on the letter. It is really not relevant.
The other type of "job offer" letter is the one you need if you are claiming to have an offer of "arranged employment" or a "valid job offer" (e.g. LMIA plus the offer of future full-time permanent employment, for the extra 600 pts). This letter focuses on the FUTURE, not the past. This is not the same as the letter of employment.
The letter of employment is a letter that your employer writes (not you) that testifies to the work you have performed in the past, that can be used to qualify for permanent residence. The date on the letter is used as the end date of your experience (so for example, if it is dated in December 2014, none of your experience in 2015 is covered). It is very important that if you are still employed at this company, the letter have a recent date.