Deserialize files

[klango]

Hi after successfully decrypting cached files (under /cache/0 not media_cache) it turned out that I got lots of serialized files in parts, (each seems to be for each local chat?)
They all start with 00000000 1f 8b 08 00 00 00 00 00 02 03 ec in which 1f 8b seems to be file signature for gzip files.
Anyways these are relatively small 5 to 60 KiB.
Is there a way to append or put the together in a readable format?