.LCK - File Extension for Lock Files

Q

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What is LCK? LCK, short name for Lock, is used as the file extension for Lock files. .LCK files are binary files that are used as locks for other data files to prevent them being changed by more than one applications. No sample .LCK file is available.

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A

File Extension: .LCK

MIME Type: application/octet-stream

File Content: Lock

.LCK files are Lock files saved as binary files. Here are the first 64 bytes of a sample .LCK file dumped in HEX values:

01 74 00 00 18 21 00 00 00 00 00 00 0c 00 00 00 .t..............
0c 00 00 00 14 00 00 00 14 00 00 00 1c 00 00 00 ................
1c 00 00 00 24 00 00 00 24 00 00 00 00 00 10 00 ................
54 49 00 00 f1 03 01 00 00 00 00 00 00 00 00 00 TI..............

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