office file download in guest sharing link

Currently, if I share office file(excel, powerpoint, etc.) to guest, there are no download option, even with editing permission.

Am I right? 

This makes great barrier with co-workers. 

They might want to co-edit with the same file, but frequently they also want to download office file and send copy to their client also.

If I am working with only my co-worker, this should not be a problem, but in realiy I have to work with co-worker's co-worker. In this case, just sharing copy will be better in many case.

I had many problems till now not having download option with guest sharing link.

This is must feature, IMHO. Especially with guest 'edit' permision link.