# tmux.SetEnvironmentOptions.ExpandFormat

- **Module:** tmux.SetEnvironmentOptions
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/environment.go#L23
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-setenvironmentoptions-expandformat/

ExpandFormat expands tmux format expressions in Value before storing it.