Configuring and using Calibre's built in Open With

[BetterRed]

Calibre has a built-in Open With feature that is very simple to configure and use. A separate list of programs is maintained for each format file type (which can be non ebook file types, e.g. MP4 videos)

You can add a program to a file type Open With list thus:

Right click on the file type, e.g. EPUB, in the Book Details panel and select Open EPUB with...



Added: You can add & edit Open with programs in the Tag browser:




This will present a list of previously assigned programs,



Click the Browse computer for program, which will open up a file manager open file dialogue, browse to the program you want - such as Sigil



That's how to configure - now how to make use of it

For frequently used programs I assign a keyboard shortcut to the program:



For occasional use programs I use the View specific format tool, where there's same the Open XXXX with... option



This is what I have for EPUB in my Books library



The blue ebook viewer is from a portable 3.48 (I changed its icon to differentiate)

BR

I got fed up with posting this response, in future I'll just post a link