Creo 3 M110 unable to open Creo 4 part file.

[sgavin]

Weird!

I recently sent a part file created in Creo 4 to a customer who uses Creo 3 (M110) and he was unable to open the file.

The error "unable to open file"

Anyone come across this?

[bgruman]

Have not heard that Creo4 is special in this regard,  but I could be wrong...

Historically,  Pro/E-Creo has only been forward compatible,  not backward compatible. (Creo4 CAN open Creo3 files,  but Creo3 CAN NOT open Creo4 files)

Seems like a normal error to me.

Good Luck

Bernie

Owner / Designer / Builder

www.grumancreations.com

[lhoogeveen]

See this post: GRANITE-based Cross-Release Interoperability for Pro/ENGINEER - PTC.com

There's a way to make Creo files appear as read only when being opened in older versions but it doesn't look like it supports Creo 4 yet (Creo 4 is at it's first build code (F000) which should not be used in a production environment yet). It may just be easier to share STEP or IGES files if you want to keep using Creo 4.