Product Support

All Files Viewer is a multi-format file viewer that can open close to 400 file formats with just one application – saving you time and  effort from finding, downloading, and installing multiple file viewers for different types of files.

Product Support

Even though All Files Viewer is a free product, we are still committed to ensuring all of its features and functions work as designed. Plus, we take pride in connecting with our users all around the world and knowing the fact that the apps we develop are helping solve their needs.

Before you contact us

To ensure our ability in providing effective help to as many users as we can, we ask that, before you contact us, please review the online product support resources first:

If you still have questions, concerns, or suggestions, please proceed to the next section for how to reach us.

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How to contact us for support

To reach us for product or technical support, please send an email to support[at]bluskysoftware.com describing the nature of the issue. Our support team will review your request and contact you to provide help, or request for further information. 

How to share your files

Our support team may need to analyze an file in order to understand the issue in order to provide support for opening the file. If you have a file pertaining to the issue, which prompts you to contact us for support, and wish to share it with us, please consider sharing the file when you contact us. If the size of a file is less than 10 MB, you can choose to send it as an email attachment. Otherwise, we strongly recommend you use the following methods for sharing files over 10 MB, instead of attaching it to your email. Your email service provider may cap the limit of file attachment size and thus blocks your emails from reaching us.


Please note
: We respect your privacy and confidentiality and thus manage our data security very seriously. All information, including any file attachments, data, and knowledge provided to us is confidential and private. We DO NOT keep copies of any file or data voluntarily shared with us after the related support case has been closed. 

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Product License

All Files Viewer is available from the Microsoft Store as a free app, for both personal and business use. You can install the app on as many Windows devices, which supports the Microsoft Store, as long as you agree to abide by the following terms and policies:

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