Question about updating via CSV file.

Yes, it's possible.
Please attach a screenshot of the import filter you've created

Hi, here is the filter that I used

Mmmm the filter seems to be correct  
Description is on column 6 right?

Could you please attach here also a simple CSV file your trying to import? (this thread is set as private so no one else can see it)

Yes the description is the final column. Here is a sample:

I actually use csv, not tab delimited as shown above, so the table may not look right. I can't find a way to attach .csv files on this forum...

Actually, it seems to have worked except for a few errant products

Hello Fabio,

I have solved the problem. It turned out that when I came to update the inventory, some of the product codes lost some formatting and were essentially duplicated with different product codes.