df-file is used at run time in 2 crates. It's used only as a dev dependency in 4 crates.

Depender (with downloads and own rev deps) df-file version
360 1 df-plugin ^0.1.1
df-http ^0.1.1
300 1 df-db dev ^0.1.3
170 1 df-web dev ^0.1.3
120 1 df-excel dev ^0.1.3
1 df-email dev ^0.1.1