For those who already added their collection, it won't be useful for it demands a huge manual work
Step 1
Open notepad and copy paste the coins info
Step 2
Replace all field names by a special character, in this case $
Step 3
Copy / Paste into comments field
Step 4
Export
Step 5
Select comments column
Go to Data and select text to columns
Step 6
select delimited field
Step 7
add $ as field delimiter
Step 8
Add labels to each field
Problems:
A huge lot of work if you have a lot of coins
You have to do steps 5-8 every time that you export your collection