Quicken QuickFinder Information File
application/octet-stream
Magic Bytes
Offset: 0
49 4E 44 58
The Quicken QuickFinder Information File is a proprietary database indexing format developed by Intuit specifically for use within the Quicken personal finance management ecosystem. Designed to optimize performance, this format stores organized metadata that enables the QuickFinder tool to rapidly locate specific transactions, categories, or amounts across large financial data sets. While these files pose no security risk, they are essentially disposable cache data that the software automatically regenerates if the index becomes missing or corrupted.
Validation Code
How to validate .idx files in Python
Python
def is_idx(file_path: str) -> bool:
"""Check if file is a valid IDX by magic bytes."""
signature = bytes([0x49, 0x4E, 0x44, 0x58])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .idx files in Node.js
Node.js
function isIDX(buffer: Buffer): boolean {
const signature = Buffer.from([0x49, 0x4E, 0x44, 0x58]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsIDX(data []byte) bool {
signature := []byte{0x49, 0x4E, 0x44, 0x58}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/idx
curl https://filesignature.org/api/v1/idx