PX files exist as 2 different types. Please find information about each of them below.
Type 1: Pixel Image File
Files with .px extension are Pixel image files. These files are created by Pixel image editor software. Pixel is a photo editing and graphics software for Windows. It is developed by Pavel Kanzelsberg...
Files with .px extension are Pixel image files. These files are created by Pixel image editor software. Pixel is a photo editing and graphics software for Windows. It is developed by Pavel Kanzelsberger. The .px files contain picture images. The default software to open .px files is Pixel image editor. Pixel supports RGB, CMYK, HDR image editing and photo retouching. It can also manipulate graphics and animation. Pixel works on various operating systems.
The .px extension is made by Pixel software. These files are classified as raster image files. .px files are pixel image files. They are saved by Pixel image editor software. Pixel supports layers, paths, channels, masks and selections. It can also include adjustment and effects layers. Pixel files can save images in RGB, CMYK, grayscale and Lab color modes. They can also save in HDR format with 32-bit precision.
To fix issues opening .px files you need to update the application. Only the latest version supports the current .px format. The Pixel image editor software can create .px files. For description of the .px format check the Pixel software. To convert .px files to other formats use appropriate conversion software. The MIME type for .px files is image/px.
Adobe Photoshop
GIMP
XnView
R (pxR package)