Basic information about APO file

When there is a problem with opening files with the file extension APO（*.APO or *.apo）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the APO file yourself.

There are 1 file types using the APO file extension in our database. In the further part of this page, you will find detail information about all the APO file with their brief description and a list of programs that support APO file sorted by operating systems. The table below provides useful information about the APO file extension. It answers questions such as:
  • What is the APO file?
  • How to open a APO file?
  • What programs do I need to open a APO file?
  • What programs help to create and edit a APO file?
  • How to convert APO files to another file format?
  • How to convert another files to APO file format?


1.Detail information about APO file extension: Abacre Paperless Office

File type Abacre Paperless Office Category Page Layout Files
Developer Abacre Limited File format N/A
Description APO file is a Abacre Paperless Office developed by Abacre Limited. APO filename suffix is mostly used for Abacre Paperless Office files. Abacre Limited defined the Abacre Paperless Office format standard. Files with APO extension may be used by programs distributed for Windows platform. Abacre Paperless Office is by far the most used program for working with APO files. Abacre Paperless Office software was developed by Abacre Limited, and on its official website you may find more information about APO files or the Abacre Paperless Office software program.
Software programs that will open, edit or convert APO files

Windows		 Abacre Paperless Office



Can't open a APO file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.APO”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the APO extension without any issue.


Where I can download the application that support APO file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of APO files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a APO file?

The reasons for the lack of the ability to open a APO file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a APO file. If there is still something wrong, you might want to check:

  • Whether the APO file is damaged.
  • Whether the APO file is incorrectly linked in the registry entries.
  • Whether the APO file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the APO file format is incompletely.
  • Whether the APO file is infected.
  • Whether the drivers of the equipment used for opening a APO file are up to date.
  • Whether your computer has enough hardware resources to open a APO file.

If the APO file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.