With Filestar you get 0 different skills for working productively with MSX Screen 2 (GRP) Dump (.grp) files.
About .Grp
Name
MSX Screen 2 (GRP) Dump
Extension
.grp
Format
Binary
Category
Raster Image
Developer
ASCII Corporation
Description
A dump of the MSX Screen 2 (GRP) graphics page, saved with the FE BSAVE header. An interlaced picture's second page sits beside it as .s15 to .s18. RECOIL decodes it.