Click the "Select File" button above, and choose your OTZ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OTZ to another file type
To convert OTZ themes to another format, you need OpenLP or other Settings software.
Convert a file to OTZ
To convert other file formats to the "OpenLP Theme File" file type, you need software like OpenLP or a similar tool.
About OTZ files
An .otz file is an OpenLP Theme File used to define the visual appearance of presentations during church worship services. These themes dictate the fonts, text colors, slide layouts, and background images or videos used to display lyrics and scripture on projector screens.
These files are built specifically for use with OpenLP, a free, open-source presentation software platform widely used by churches and community groups.
Because the .otz format is explicitly bound to the OpenLP ecosystem, it is effectively useless on its own if you do not have the software installed. This creates a severe limitation for users who want to reuse an attractive background image or video from an OpenLP theme inside other popular presentation tools like Microsoft PowerPoint or ProPresenter. The proprietary extension prevents standard image viewers and media players from opening the file.
The pragmatic solution is to convert or extract the .otz file into standard formats. Under the hood, an .otz file is simply a compressed archive in disguise. Converting the file to ZIP allows you to easily extract its internal contents, which typically consist of an XML file containing the layout coordinates and a JPG, PNG, or MP4 media file serving as the slide background.
Standard online converters usually fail to process .otz files because they do not recognize the extension and attempt to treat it as a flat document rather than an archive container.
Convert.Guru analyzes your OTZ file, detects the exact format, and lets you read the text inside.
If you want to convert OTZ file to INI, CFG, CONF, CONFIG, JSON, XML, YAML, YML, TOML, ENV, PROPERTIES or RC, you can use OpenLP or similar software from the "Presentation Theme Settings Package" category. In the File menu, look for Save As… or Export….
To convert ZSHRC, CONF, RCFILE, GITCONFIG, RC, PLIST, BASHRC, CONFIG, PROFILE, INI, PREFS or CFG files to OTZ, try OpenLP or another comparable tool in the "Presentation Theme Settings Package" category.
The OTZ Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OTZ converter.