Convert DOCX to AZW3 online for free
1: Choose multiple local DOCX files or enter the URL of an online DOCX file. 2: Choose "AZW3" as target format and set options. 3: Click the "START CONVERSION" button to convert DOCX files to AZW3 online.
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Office Open XML Document
File extension: .docx, .docm
The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulae, graphics, bibliographies etc.
Kindle Format 8
File extension: .azw,.azw3,.azw4
Kindle devices are designed to use Amazon's own e-book formats: AZW. In late 2011, the Kindle Fire introduced "Kindle Format 8" (KF8), also known as AZW3 file format. AZW3 supports a subset of HTML5 and CSS3 features, while acting as a container for a backwards-compatible MOBI content document.