Writeexcel not writing the image from url

I used Writeexcel insert_image method to write the image from local folder and it is working fine as below;

@worksheet.insert_image("A#{row_name}", usage.asset.image(:small))

But when I used to insert image from amazon s3 url, image is not inserting and getting error as

could not locate the filename.

Can you point me to where in the docs for insert_image it says that
the file can be anything other than a local file?

Colin

In the docs it provide examples for local files only and not for url, I am trying to get the image from url
Is this support?

In the docs it provide examples for local files only and not for url, I am
trying to get the image from url
Is this support?

If it were supported I would have expected that to appear in the documentation.

Colin