67 File Extension
Have a problem opening a .67 file? We collect information about file formats and can explain what 67 files are. Additionally we recommend software suitable for opening or converting such files.
Have a problem opening a .67 file? We collect information about file formats and can explain what 67 files are. Additionally we recommend software suitable for opening or converting such files.
The most frequent occurrence of dotted numerical indexes as filename extensions has to do with the common Versioned Pro/Engineer Project Backup file type. A long-established parametric Computer-Aided Design (CAD) system by PTC, Pro/Engineer is a powerful tool of technological creation in many industries and hi-tech areas of application.
For safekeeping of user data and for traceability reasons, Pro/Engineer implements a system of versioned backup copies for its project files. Every active Pro/Engineer project is automatically saved into a different file with an added numerical extension (like .67), before any changes are committed. Thus, the .67 file is the sixty-seventh backup copy of an apparently much-edited Pro/Engineer project. Such versioned backups have dual extensions and use the same formats as their respective original project files.
Quite differently, a dotted numerical string like ".67" may sometimes either take place of any actual filename extension or look like one. It usually happens with filenames that have dotted numerical indexes in a trailing position (e.g., "Screenshot.67.jpg") when the actual extension is somehow missing or just concealed. To avoid confusion and for security reasons, the "Hide extensions for known file types" should always be turned off on Microsoft Windows computers.
Lastly, a numerical extension like .67 may denote a part of a larger file split into multiple pieces. Such file-splitting can be helpful to ensure successful transmission of large bulks of data over non-reliable networks or for other purposes. In this case, the .67 file is the sixty-seventh part of a split file. To restore the original large file, its split parts must be rejoined in their proper order.