APMASTER File Type

- The quick facts

What are APMASTER files and how to open them

Are you having problems opening an APMASTER file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an APMASTER file?

An .APMASTER file is an Aperture Master file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open APMASTER files

Important: Different programs may use files with the APMASTER file extension for different purposes, so unless you are sure which format your APMASTER file is, you may need to try a few different programs.

We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Last updated: February 9, 2011

Suggest another file format using extension APMASTER

While we know of one file format using the .APMASTER file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .APMASTER file.