OTO File Type

- The quick facts

What are OTO files and how to open them

Are you having problems opening an OTO 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 OTO file?

An .OTO file is an AutoPano project file. Through our analysis of OTO files, we know that one use of the format is AutoPano project. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open OTO files

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

While we have not verified the app ourselves yet, our users have suggested a single OTO opener which you will find listed below.

Last updated: March 13, 2012

Suggest another file format using extension OTO

While we know of one file format using the .OTO 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 .OTO file.

Various apps that use files with this extension

These apps are known to open certain types of OTO files. Remember, different programs may use OTO files for different purposes, so you may need to try out a few of them to be able to open your specific file.

HuginHuginUser submitted
We have not verified any software that we know for certain will work with OTO-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with OTO-files. If you know one, please use the 'Suggest a program' link below and tell us about it!