The File Extensions Database

.HTMLZ File Extension

  • Category: eBook Files
  • Format: Zip

What is an .HTMLZ file?

.HTMLZ is Zipped HTML eBook

File that contains an eBook saved in the HTMLZ format, which is a .ZIP file with the ".htmlz" extension; contains multiple files, including .HTML files, images, and a metadata.opf (.OPF) file; used for packaging eBook content into a single archive.

Programs that open Zipped HTML eBook
PatiSoftware theLibrarian

How to solve problems with HTMLZ files

  • Associate the HTMLZ file extension with the correct application. On :
    Windows: Right click on any HTMLZ file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.HTMLZ files". Mac: Right click (or Ctrl-click) the HTMLZ 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 .HTMLZ is Zipped HTML eBook. Because only the current version supports the latest HTMLZ file format. Search, therefore, e.g. on the N/A manufacturer website after an available .HTMLZ is Zipped HTML eBook update.
  • To make sure that your HTMLZ file is not corrupted or virus-infected, get the file again and scan it with antivirus software.