Microsoft Outlook Personal Address Book File (.pab)
.pab file signature | application/octet-stream
Magic Bytes
Offset: 0
21 42 44 4E
Microsoft Outlook Personal Address Book File
Sources: Gary Kessler
Validation Code
How to validate .pab files in Python
def is_pab(file_path: str) -> bool:
"""Check if file is a valid PAB by magic bytes."""
signature = bytes([0x21, 0x42, 0x44, 0x4E])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .pab files in Node.js
function isPAB(buffer: Buffer): boolean {
const signature = Buffer.from([0x21, 0x42, 0x44, 0x4E]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .pab files in Go
func IsPAB(data []byte) bool {
signature := []byte{0x21, 0x42, 0x44, 0x4E}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/pab
curl https://filesignature.org/api/v1/pab
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .pab file?
A .pab file is a Microsoft Outlook Personal Address Book File file. Microsoft Outlook Personal Address Book File
What are the magic bytes for .pab files?
The magic bytes for Microsoft Outlook Personal Address Book File files are 21 42 44 4E at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .pab file?
To validate a .pab file, read the first bytes of the file and compare them against the known magic bytes (21 42 44 4E) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .pab files?
There is no officially registered MIME type for .pab files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .pab files?
Microsoft Outlook Personal Address Book File (.pab) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.