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Owl Files Packer is a tiny and portable software application made to help you create archives that can only be opened with this tool. It's able to compress files to .OWLPACK format and lets you protect them with a password.

Unlike many compression utilities, Owl Files Packer doesn't integrate rich options or configuration settings, so you don't have to worry about complex operations.

Since there is no installation involved, you can drop the app's executable file in any part of the disk and just click it to launch the archiver. Another possibility is to save it to a removable storage unit to be able to directly run it on any PC with minimum effort and no previous installers. More importantly, it doesn't change Windows registry settings, so it doesn't increase the risk of OS stability issues.

The GUI is represented by a simple window with a minimalistic look, where you can get started by adding files to the new archive. This can be done using the file browser only, since the drag-and-drop feature is unsupported.

It's possible to add as many files as you want, indicate the new archive's name and output directory, as well as add password protection. What's more, Owl Files Packer contains an option that lets you integrate it into the Windows Explorer shell extension for quickly creating .OWLPACK archives.

Apart from the fact that you can open archives with the same format, remove any files, and extract them to the disk, there are no other notable options available.

The software utility didn't put a strain on the overall performance of the computer in our tests, since it required low CPU and RAM to work properly. It carried out compression jobs quickly.

On the other hand, it failed in its attempt to create archives on Windows 8.1. We must also keep in mind that Owl Files Packer hasn't been updated for a long time, and it likely has compatibility issues with later Windows editions. On top of that, it contains a small set of features.