Thanks rash and Karen for your respond, Finaly I submit it and here I share my hints and experiences:
-Overall I wrote 3587 characters for all 3 fields. I thinks 3587 is Maximum
- you can write and save whatever in first field up to 3000 character easily
- I wrote 2 of my job description at first field. and distinguish them by CAPITAL NOTE: ** due to website problem I wrote my 2nd job description bellow**
- For 2nd Job field . I only wrote ** description for this job is written at above job description field due to site problem**
- 3rd job description field was easier than 2nd one. I managed to decrease it to about 600 character and as Rash mentioned, I used line by line paste
- there are some website which help you to make your MSWord Doc as Plain TXT and also another website for character counting.
By the way I asked my question from INZ and here is what they replied:
""Thank you for contacting us. We are aware of the issue regarding that section and unfortunately, the Service Desk is still finding ways to rectify it.
You may submit your EOI without filling out that section and once an Invitation to Apply has been sent to you, that is when you submit the additional information regarding your previous experiences""
So I think they don't expect much about this field, however with some struggle you could be able to write something.
Also, don't spend long time to write nice 2000 + character essay with bullet point and other formatting, as you will regret when you want to fit it in EOI fields. In my case I spent 3 days to search, contact INZ, google and try many different ways.
Cheers,
Amin