A simple command-line tool to encode JPEGs as XLSX files, where each pixel's RGB values are encoded using three cells' background colors, similar to how a screen would display an image.

Used as teaching support asset to demonstrate the fundamental fact that the basis of computer science is data representation and manipulation, and that most of what any computer does is retrieve, store, and manipulate data.

go install github.com/haroun-b/jpeg-to-xlsx@latest

Don't forget to add $GOPATH/bin to your $PATH if you haven't already

export PATH=$PATH:$(go env GOPATH)/bin

• Download the latest binary from the releases page
• Add the binary to your binary directory (e.g. /usr/local/bin)

Make sure the binary has execute permissions

jpeg-to-xlsx <./dir/source-img.jpeg> [<./dir/output.xlsx>]