Hi @ryan - welcome to the Community! Great first question! SnapLogic does not have a snap to read the TAR file, so you will need to use a Script snap to handle that portion of this request.
I came across this a while back and have a simple pipeline example using a Script snap to explode out the TAR data. This solution works fine for smaller TAR files but since it does everything in memory, it may consume large amounts of your node memory if the input file is large. This is attached here:
Read tar.gz file_2022_01_31.slp (12.3 KB)
One of my co-workers created a slightly different design that pushes the TAR file to the snaplex local node file system and uses Python to explode out the files within the file system then reads the contents back in. Hopefully this link works for you: Box