- Extension
- .gro4
- .heic
- Format
- Binary
- Binary
- Category
- Scientific
- Raster Image
- Developer
- Hewlett-Packard
- Moving Picture Experts Group
- Description
- The gro4 file type is associated with the HP-49 OpenFire, a software application used on HP-49 graphing calculators. These files typically contain data or code related to programs, applications, or games developed specifically for the OpenFire environment on these calculators. The gro4 format is designed to be compatible with the unique operating system and hardware of the HP-49 series, allowing users to extend the functionality of their device with custom or third-party software. Users can load, execute, and manage gro4 files directly on their HP-49 calculators to add new features or capabilities.
- An image file format mainly used in storing cell phone photos and they are saved in the High Efficiency Image Format (HEIF). They store one or more images and the metadata description for each image. Also known as .heif files
- MIME Type
- application/vnd.hp-hpgl
- image/heic
