Gbs39.7z -

: A business-specific internal archive.

: A common term in bioinformatics for genomic data sets. GBS39.7z

If you're unsure about the file's safety, I recommend scanning it with a service like VirusTotal before opening it. : A business-specific internal archive

The "GBS" in the filename could refer to a few different things depending on your field: GBS39.7z

: Sometimes used in emulation communities for ROM sets.

To give you a helpful review or more details, could you clarify or what it is supposed to contain ?