OTB File Extension

Nokia Over The Air Bitmap Image
- File Type otb
- Developer Nokia
- Popularity
- Application XnView
- Category Raster Image Files
- Format Binary
What is a OTB file?
Nokia Over The Air Bitmap Image, identified by the OTB extension, is a Raster Image Files type and includes 575 files.
The Nokia Over The Air Bitmap Image (OTB) was created by Nokia, a company that developed file format and produced 7 programs for their use.
OTB file support extends to various operating systems, including Windows, Mac OS and Linux. If you need to view a OTB file, you can use one of 4 programs, such as XnView, XnConvert and Picture Resize Genius.
Programs that support OTB files

Online Services
How to open a OTB file?
If you’re having difficulty opening a OTB file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.
When it comes to opening and working with OTB files, XnView, XnConvert and Picture Resize Genius are the top choices for users. If you need the newest version of XnView, just access the Gougelet website. From there you can download the installer compatible with all systems.
Following installation, OTB files should be automatically opened with XnView.
Set XnView as the default OTB program
Changing Default Programs in Windows
- Right-click your OTB file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
- In the pop-up window, select the XnView application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening OTB files.
Change Default Program on Mac
- Right click or Control + left click on the desired OTB file;
- Select "Open in application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to XnView. Check the box next to "Always open in app" to make sure it’s the default option.
Convert to and from OTB
If handling a OTB file is problematic, consider converting it to alternative formats such as JPG, AR, CG or other supported types.
Keep in mind that converting a OTB file may introduce some limitations, but the original format can often be restored.
Using offline applications such as Picture Resize Genius, you can convert OTB files to various formats without losing data quality.
Convert OTB to other file formats
Solve problems with OTB files
When issues arise with OTB files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What can lead to sudden XnView crashes?
XnView crashes can occur due to outdated software versions. To mitigate this, install the latest updates for Gougelet products.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
What is the recommended approach to repair a damaged OTB file?
Open the damaged OTB file with a recovery program, and then select the "Repair" menu item to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged raster image files.
What are the telltale signs of a corrupt OTB file?
Common indications of damaged OTB raster image files are:
- Unexpected expansion of the total size of the OTB file;
- Opening the file in XnView or other programs causes them to hang or crash;
- Opening the file results in an error or a failed attempt;
- While working with the file, error messages appear;







