OTM File Extension
Outlook Macro Project File
An Overview
The OTM file extension stores macro written for Microsoft Outlook email client application. All Outlook macros are kept in a single VbaProject.otm file that contains scripted programs created in the Visual Basic Editor.
These functions are used for scanning email messages or collecting file attachments.
Application Category
Project Files
Organization
Microsoft Corporation
MIME Type
Application/octet-stream
Outlook OTM File Location
Default storage paths for VBA project files:
Outlook 2007 / 2010 (Vista/7)
Drive:\Users\(user)\AppData\Roaming\Microsoft\Outlook\VbaProject.OTM
Outlook 2013 (Windows 8)
Drive:\Users\(user)\AppData\Roaming\Microsoft\Outlook\VbaProject.OTM
Related Registry Keys of OTM File Extension
HKEY_CLASSES_ROOT\.otmHKEY_CLASSES_ROOT\OTMFileHKEY_CLASSES_ROOT\Outlook.File.otm.14HKEY_CLASSES_ROOT\Outlook.File.otm.15Applications Supported
Microsoft Office Outlook
How to open and view OTM file
The OTM extension is created and opened using MS Outlook Email Client via the integrated Visual Basic Editor (ALT + F11).