With the file extension VDA images are marked in TruVision TARGA VDA format, which were originally processed by the video hardware VDA. Vda files are called Pseudo Color images.
VDA is a rarely used alternative to the standard tga application for TARGA image files. On the Apple MacIntosh also the extension tpic is used.
In principle, any image processing software that can handle tga files should also be able to read VDA files. If the extension VDA is not recognized, a change in tga can provide a remedy.
Most often resolving problems with opening VDA files is very simple. Just install an appropriate program that supports such files. All of the listed programs support VDA files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of VDA files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate VDA files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe Photoshop applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe Photoshop has been installed.
Sometimes problems with opening VDA files may not lie with the application itself, but can arise due to other causes, such as: