The File Extensions Database

.SMBP File Extension

  • Developer by:, Inc.
  • Category: Encoded and encrypted Files

What is an .SMBP file?

.SMBP is Mobipocket eBook secured auxiliary file

The mbp file extension is associated with MobiPocket eBook format and used for some sort of secured auxiliary file, that can contain various user specific data, such as annotations, corrections, marks etc. These files are the counterpart to the main ebook file (PRC etc.and such).

How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .smbp file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to solve problems with SMBP files

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