I used imagemagick to batch convert from dds to tga with the command, magick mogrify -path "\outputFolder" -format tga \inputFolder\*.dds. It worked for me. In case you want to convert dds to dds magick mogrify -path "\outputDir" -format dds \inputDir\*.tga, but in this case you might need to pay attention to the formating, i.e., A8R8G8B8 (32 bpp, unsigned, no Mipmaps). I believe that is also possible with imagemagick.