TDA
application/octet-stream
Magic Bytes
Offset: 0
00 01 44 54
The TDA file format is a proprietary data structure developed by Palm, Inc. for managing task-related information within the Palm Desktop software suite. It functions as an archival format for To Do list entries, synchronizing and storing organizational data from Palm OS devices onto personal computers. This legacy format is now obsolete but remains safe for data recovery as it lacks executable components or scriptable elements common in modern file types.
Validation Code
How to validate .tda files in Python
Python
def is_tda(file_path: str) -> bool:
"""Check if file is a valid TDA by magic bytes."""
signature = bytes([0x00, 0x01, 0x44, 0x54])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .tda files in Node.js
Node.js
function isTDA(buffer: Buffer): boolean {
const signature = Buffer.from([0x00, 0x01, 0x44, 0x54]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsTDA(data []byte) bool {
signature := []byte{0x00, 0x01, 0x44, 0x54}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/tda
curl https://filesignature.org/api/v1/tda