Click the "Select File" button above, and choose your EFIRES file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert EFIRES to another file type
To convert EFIRES boot resources to another format, you need macOS or other System software.
Convert a file to EFIRES
To convert other file formats to the "EFI Image File" file type, you need software like macOS or a similar tool.
About EFIRES files
The .efires file is an Extensible Firmware Interface (EFI) resource file used natively by Apple macOS to store proprietary boot screen images and UI elements. These system-level files are directly loaded by the Mac firmware during the earliest stages of the boot sequence, long before the core operating system initializes. The primary disadvantage of the .efires format is that it is an entirely closed, undocumented container designed strictly for machine consumption. It cannot be opened by standard graphics software like Adobe Photoshop and is natively unsupported by all web browsers and consumer operating systems outside the Apple ecosystem. Users typically encounter these files when extracting firmware updates or browsing macOS system partitions, which leads to immediate frustration when attempting to view or extract the underlying Apple boot logos. Standard online converters fail to process .efires files because they lack the proprietary extraction logic needed to parse Apple's unique EFI container architecture. To recover usable image files like PNG or JPG, one typically has to rely on specialized reverse-engineering tools. Just drag and drop your .efires file to identify the format, view it, and convert it when possible. Explain why this file format is difficult to open or convert. Emphasize that often only the original software can properly read or export the data. convert.guru can still identify the file format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your EFIRES file, detects the exact format, and lets you read the text inside.
If you want to convert EFIRES file to SYS, DLL, EXE, DRV, VXD, 386, COM, BAT, CMD, SCR, PIF or LNK, you can use macOS or similar software from the "EFI Boot Screen Resources" category. In the File menu, look for Save As… or Export….
To convert MSI, EXE, REG, MST, LNK, CAB, CAT, DRV, INF, SYS, MSU or DLL files to EFIRES, try macOS or another comparable tool in the "EFI Boot Screen Resources" category.
The EFIRES Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our EFIRES converter.