Can't install zxp file - Adobe Extension Manager misses a valid signature

[Billyston18]

Trying to install interpolate_p2_100512.zxp from "Download Interpolate extension for Photoshop - Adobe Labs

into PS CS6 Extended, the Adobe Extension Manager CS6 starts and then states that the zxp file is missing a valid signature.



Does anyone know how to install such a zxp filed extension ?



Thanks

 

[dennybeall]

That's a 2012 file which may have something to do with it. Also, it may be a .zip file so I would download and save the file then change the file extension to .zip and try again.

 

[snowbear]

^This:
What's a ZXP File and How Do You Open One?