An opc file extension is related to Microsoft Office 97. An opc file contains upgrade control data.

There are 2 other file types using
the OPC file extension!

empty icon.opc - Omron OPC client data

empty icon.opc - Orbit point cloud

Detailed description

Software that open opc file

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OPC file extension - Microsoft Office 97 upgrade control data

What is opc file? How to open opc files?

File type specification:

Text file type icon Text file type

The opc file extension is associated with Microsoft Office, a suite of office apps, like word processor, spreadsheet editor, database editor etc. available for Microsoft Windows and Apple Mac OS X (macOS) systems.

The opc file stores upgrade control data used by Office 97.

This opc file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: December 20, 2024

The default software associated to open opc file:

Microsoft Office icon

Microsoft Corporation logoMicrosoft Office  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Office is popular productivity suite for Microsoft Windows. Microsoft Office contains a set of applications and services used to work with documents (Microsoft Word), spreadsheets (Microsoft Excel), presentations (Microsoft PowerPoint), databases (Microsoft Access) etc..

Microsoft Office can be also used to manage e-mail accounts, tasks, calendars and contacts (Microsoft Outlook). 

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .opc file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

File identification strings:

HEX code: 23 23 23 23 20 4F 50 43 20 46 49 4C 45 20 56 45 52
ASCII code: #### OPC FILE VERSION

List of recommended software applications associated to the .opc file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open opc file, edit opc file, convert opc file, view opc file, play opc file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with opc file - Microsoft Office 97 upgrade control data

Click on the software link for more information about Microsoft Office. Microsoft Office uses opc file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

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