.UVVI file extension

To open .UVVI files on Windows, if double-clicking fails, open an image viewer/editor and use File → Open, then change the file filter to “All files (*.*)” and select the .uvvi file.

To open a .uvvi file, try an image viewer/editor that lets you open files “by type” or “all files,” or import it into software that can handle DECE graphic assets. If your usual viewer refuses the file, the most reliable workaround is to keep the file unchanged and use a tool that identifies it by MIME/content rather than just the extension.

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Last updated: October 13, 2026

Open on your device

Choose your operating system for a dedicated step-by-step opening guide.

How to open .UVVI files

Use these platform-specific instructions to open .UVVI files safely.

Windows

If double-clicking fails, open an image viewer/editor and use File → Open, then change the file filter to “All files (*.*)” and select the .uvvi file.
If the app still rejects it due to extension, use a tool/workflow that relies on MIME typing (image/vnd.dece.graphic) instead of extension, then import/open from there.

Full Windows guide

Mac

Try opening the file from within an image app using File → Open and selecting “All files” so the app doesn’t hide unknown extensions.
If it won’t open, use a DECE/MIME-aware workflow that recognizes image/vnd.dece.graphic rather than relying on Finder/extension associations.

Full Mac guide

Linux

From an image application, use File → Open and select the .uvvi file while using an “All files” filter.
If it fails, inspect/route it using MIME-aware tooling that recognizes image/vnd.dece.graphic, then open via the tool that can decode the content.

Full Linux guide

iOS

iOS apps may not recognize .uvvi by extension; try opening it from within a viewer app that supports browsing “all files,” otherwise transfer it to a desktop system for MIME-aware handling.

Full iOS guide

Android

Android may not associate .uvvi with an image viewer; try opening it from within a file manager/viewer that can pick “all files,” or transfer to a desktop for MIME-aware handling.

Full Android guide

Security notes

.uvvi is associated with an image media type (image/vnd.dece.graphic). While it is not intended to carry executable code, malformed image files can still trigger vulnerabilities in image parsing libraries—treat unexpected .uvvi files as untrusted input.
Because .uvvi is rare, some software may mis-detect it or handle it via fallback/heuristics. Prefer opening it in well-maintained software stacks that correctly use MIME typing (image/vnd.dece.graphic) rather than ad-hoc converters.
Be cautious of files with misleading double extensions (for example, something named “photo.uvvi.exe”). Rely on your OS file properties and content-type handling rather than the visible name alone.

Can't open this file?

These are the most common causes and fixes when .UVVI files fail to open.

Common reasons

“Unsupported file type” because the extension is unfamiliar
Incorrect file association (opens in the wrong app or not at all)
File appears corrupted or won’t render

Fix steps

Open the image app first, then use File → Open with the filter set to “All files (*.*)” and select the .uvvi file.
If the app still blocks it, use a workflow/tool that recognizes the file via MIME mapping (image/vnd.dece.graphic) rather than extension.

Recover a deleted or lost .UVVI file

If the file was deleted by mistake or the drive was formatted, data recovery software may be able to get it back. Stop writing to that drive right away, because new data can overwrite what you want to recover.

MiniTool Power Data Recovery

Windows software that recovers deleted or lost files from PCs and external drives such as HDDs, SSDs, USB drives and memory cards, after deletion, formatting or a crash.

Wondershare Recoverit

Windows and Mac software that recovers deleted or lost files from computers and external drives such as HDDs, SSDs, USB drives and SD cards.

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OS-specific troubleshooting

What is a .UVVI file?

.uvvi is a filename extension used for DECE graphic files, associated with the vendor media type image/vnd.dece.graphic. The extension-to-MIME mapping is documented in multiple MIME databases and software mappings, but end-user desktop apps may not have explicit UI support for .uvvi as a recognized image extension.

Background

The .uvvi extension is part of the DECE ecosystem and is mapped to the vendor-specific media type image/vnd.dece.graphic, as recorded in common MIME registries and MIME-mapping libraries. In practice, you will most often encounter .uvvi in environments that rely on MIME typing and packaging workflows rather than in everyday photo/image sharing.

Because many consumer applications key off common extensions (like .png or .jpg), a DECE graphic file may fail to open just because the extension is unfamiliar, even if the application could otherwise decode the embedded image. In those cases, identifying the file by its MIME type association (image/vnd.dece.graphic) or using software that does content sniffing can be more successful.

DECE device documentation discusses DECE-related file types, MIME types, and filename extensions in the broader “UV*” family context, which is where .uvvi appears as a graphic-related member. The format is relatively niche outside of DECE-oriented pipelines and software stacks.

Common MIME types: image/vnd.dece.graphic

Common .UVVI issues

“Unsupported file type” because the extension is unfamiliar

Many image apps decide what they can open based on file extension lists. Since .uvvi is uncommon, the app may refuse it even if the underlying image data is decodable.

Open the image app first, then use File → Open with the filter set to “All files (*.*)” and select the .uvvi file.
If the app still blocks it, use a workflow/tool that recognizes the file via MIME mapping (image/vnd.dece.graphic) rather than extension.

Incorrect file association (opens in the wrong app or not at all)

Operating systems often lack built-in associations for vendor-specific image types like image/vnd.dece.graphic, so double-click behavior can be missing or inconsistent.

Use “Open with…” and choose an image viewer/editor that allows opening unknown extensions.
If you manage a deployment environment, ensure your software stack maps .uvvi to image/vnd.dece.graphic consistently (as in common MIME databases).

File appears corrupted or won’t render

If the file was truncated during transfer or stored in a DECE-specific packaging context, extracting it incorrectly can produce an incomplete .uvvi file that decoders reject.

Re-copy/re-download the file and compare sizes to the original source.
If it came from a package or content pipeline, re-extract using the same tool/workflow that produced it, ensuring binary-safe transfer.

FAQ

What does .uvvi stand for?

It is used for a DECE graphic file and is mapped in MIME databases to the vendor media type image/vnd.dece.graphic.

Is .uvvi an official MIME type?

The extension .uvvi is commonly mapped to the MIME type image/vnd.dece.graphic, which appears in MIME registries and MIME mapping datasets.

Why won’t my photo viewer open a .uvvi file?

Many viewers only whitelist common extensions. Since .uvvi is uncommon, the viewer may not try to decode it. Opening from inside the app with an “All files” filter or using MIME-aware tooling can help.

Can I rename .uvvi to another extension to open it?

Renaming may make some apps attempt to open it, but it can also mislead software if the underlying format differs. A safer approach is to use software that can open unknown extensions or identify the file using image/vnd.dece.graphic mapping.

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