Hi.
For relist or active listings you want to revise, you can edit it in Auctiva first. Then save it.
Go to Saved Listings and to the right of it are icons. Choose the Get HTML, select all in the pop up box and copy it with ctrl + c.
In eBay, choose HTML on the description edit, press
ctrl + a then press
ctrl + v and there ya go.
I preview it before submitting just to be sure, though it's always worked just fine.
Good luck with it and happy Holidays!
Of course, come back with any questions.