The File Extensions Database

.HTML0 File Extension

  • Category: eBook Files
  • Format: Text

What is an .HTML0 file?

.HTML0 is Book Designer File

eBook file saved by Book Designer, a program used to convert text documents into various eBook formats; contains HTML code used to format the layout of the pages and text.

While the HTML0 format is used internally by Book Designer, HTML0 files contain standard HTML and can be viewed and edited using a text editor. Unlike standard HTML pages, HTML0 files do not link to separate CSS files. Instead all styles are included within the document.

Common HTML0 Filenames

NewBook.html0 - The default name given to new eBooks created with Book Designer.

Programs that open Book Designer File
Book Designer

How to solve problems with HTML0 files

  • Associate the HTML0 file extension with the correct application. On :
    Windows: Right click on any HTML0 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.HTML0 files". Mac: Right click (or Ctrl-click) the HTML0 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .HTML0 is Book Designer File. Because only the current version supports the latest HTML0 file format. Search, therefore, e.g. on the N/A manufacturer website after an available .HTML0 is Book Designer File update.
  • To make sure that your HTML0 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.