With Filestar you get 18 different skills for working productively with TI Bitmap (.83i) files.
About .83i
Name
TI Bitmap
Extension
.83i
Format
Binary
Category
Raster Image
Developer
Texas Instruments
Description
83i (TI Bitmap) is an image file format used by Texas Instruments calculators. It is a raster graphics format that stores bitmap images in a compressed format, and is used to display images on TI graphing calculators.