.AZW1 File Extension
File TypeAmazon Topaz eBook
This file is saved in a binary format, which requires a specific program to read its contents.
What is an AZW1 file?
eBook file used by Amazon Kindle devices and the Amazon Kindle desktop software; stores an eBook in the Kindle Topaz format (.TPZ format); used for storing downloaded eBooks from Amazon's 3G Whispernet network.