Software & Apps File Types What Is an ANNOT File? How to open, edit, and convert ANNOT files Share Pin Email Print File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated October 16, 2019 A file with the ANNOT file extension is an Adobe Digital Editions Annotations file. These types of files are saved in the XML format and are used to store auxiliary data for EPUB files like notes, bookmarks, highlights, and other sorts of "meta" data. Some files that end in the ANNOT extension may instead be Amaya Annotation files, used with the Amaya web editing program. How to Open an ANNOT File ANNOT files are best opened with the free Adobe Digital Editions program. This is the program that lets you create the notes, bookmarks, etc., but also, of course, to see them visually within the book. However, since the format is the text-based XML, any text editor can be used to view the information, too. Opening an ANNOT file in a text editor lets you see the same information that's in Adobe Digital Editions (since that's where the information is stored), but the text isn't structured in a user-friendly way. You do, however, have easy access to all the bookmarks and notes because they're not mixed in with text from the rest of the book - you can easily search through them. A text editor also lets you see the date and time of each note and bookmark. Windows and macOS store ANNOT files in the Documents directory under the \My Digital Editions\Annotations\ folder, usually with the same name as the EPUB file (e.g. epubfilename.annot). As mentioned, Amaya uses ANNOT files, too. Use that program to read the ANNOT data if that's where it was created. ANNOT files are not the same as ANN files even though their file extensions are similar in spelling. ANN files are Lingvo Dictionary Annotation files that are associated with Lingvo Dictionary .DSL files and are opened using ABBYY Lingvo Dictionary 404. If you find that an application on your computer opens an ANNOT file after you double-click on it, but it's not the right one, change the default program. How to Convert an ANNOT File Like XML files, data in the ANNOT file can be converted to any other text-based format, like TXT or PDF, with Notepad, TextEdit, or any other text editor that can export files. However, while the converted file can remain legible in those other formats, Adobe Digital Editions won't be able to use the file unless it remains in the ANNOT format, which means anything that the ANNOT file stores will no longer be viewable when you're reading the book. If Amaya Annotation files are text-based, too (which I'm unsure of), then they, of course, can be converted just like Adobe Digital Editions Annotation files. Converting ANNOT files from Amaya has the same small print - saving the file in a different format means the Amaya software can't use the information normally, which means the file won't work with the program. In the end, there's no real need to convert ANNOT files to any other format, regardless of the program they're used in.