Creo Elements/Pro versioned data
File type: Various data file
The .77 file is a versioned data file associated with Creo Elements/Pro, PTC's CAD/CAM software.
It contains versioned data created by the software.
File type category:
Various data file
Date updated: October 7, 2026
Creo Elements/Pro, formerly known as Pro/ENGINEER, was developed by PTC as a computer-aided design and manufacturing system for Microsoft Windows. The .77 file stores versioned data created by the software.
Open the .77 file with Creo Elements/Pro on Microsoft Windows. It is versioned data, so it may not be intended to open as an independent document and may require the associated Creo design file.
There is no reliable standalone converter for the .77 file. It should first be opened or restored in the compatible Creo Elements/Pro environment.
After the data has been recovered, use Creo's Save As or export functions to create a file in a supported design format. Conversion may require related model or project files.