: This is a file format used for compressed archives, similar to .zip files. It implies that the contents have been compressed to save space and can be easily shared or downloaded.
: It likely contains a "preview" image generated during the training of a neural network to show progress (common in GANs or DeepFaceLab). Data Bundles DA-NN-Preview.rar
.rar (Roshal ARchive) is a proprietary compression format, more efficient than .zip for large files or split archives. To access the contents of DA-NN-Preview.rar , follow these steps: : This is a file format used for