Notes about the AZW1 file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The AZW1 file type is primarily associated with 'Kindle' by Amazon.com, Inc..
Amazon Kindle is an electronic book (e-book) device by Amazon.com.
It uses an electronic paper display, reads the proprietary Kindle (AZW) format, and downloads content over Amazon Whispernet, which uses the Sprint EVDO network.
The AZW1 is often used by technical books and has the name TOPAZ associated with it.