Is it possible to modify item specifics in ebay listings using file exchange?

[dudadiesel]

Hi

I would like to modify item specifications on eBay for the products using using file exchange, is it possible?

https://www.ebay.com/itm/Non-GMO-Organic-Citric-Acid-Food-Grade-FCC-USP-Fine-Granular-Anhydrous-Bath...

I have tried to using the file exchange but its getting below type of error?

BAF.Error.4
BAF.Error.5
Unparseable Line
Unable to find Task Action Id for task

Kindly please help us on this and share how to modify the item specifics in ebay listings

Thanks,

Vishal