: 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. : 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.