or while using a specific modding tool? Knowing the context will help me give you a more targeted fix.
sak.exe extract input.sak -o output_folder -v sak decompression failed
If you received the SAK file from an untrusted source (peer-to-peer, unofficial forum), it may be a "bomb" file—deliberately malformed to crash decompressors. Scan the file with multiple engines via VirusTotal. or while using a specific modding tool