PLC

plc icon

Mobius Management Systems file format

File type: Various data file

The PLC file extension identifies a file in the Mobius Management Systems format.

These files contain data used by DocumentDirect and related Mobius applications.

Found 5 different file type records with the same plc filename suffix.

What is plc file?

File type category:
Various data file

Date updated: October 9, 2026

Record marked as obsolete and not updated for a long time.

The PLC file extension was used by DocumentDirect, DocumentDirect Application Suite, and DocumentDirect for the Internet, software developed by Mobius Management Systems, Inc.

A PLC file stores application data used by these DocumentDirect products. Its MIME type is application/vnd.Mobius.PLC.

The format is obsolete and is associated with legacy Mobius software.

How to open plc file?

Open a PLC file with the Mobius DocumentDirect product that created it, if that software is still available. Because the format is obsolete, current general-purpose applications may not recognize it.

If the file belongs to an archived DocumentDirect installation, the original application or a compatible legacy environment may be required to access its contents.

How to convert plc file?

If a PLC file can be opened in the original DocumentDirect software, use its available export features to save the contents in a supported format.

No specific converter is identified for this obsolete format.

Former build script file

File type category:
Miscellaneous file

Date updated: August 16, 2017

The plc file extension is associated with OpenOffice.org. PLC file contains former build script. PLC files are used in programming of OpenOffice.org.

If you know more or some useful information about this file extension, please send us a message by clicking on submit extension button at the top of page.

How to open plc file?

The plc extension file is not meant to be opened manually by the user.

How to convert plc file?

It is not convertable file format.

Lotus add-in functions macros applications

File type category:
Source code and script file
Dangerous and malicious file

Date updated: June 29, 2018

Record marked as obsolete and not updated for a long time.

The plc file extension is associated with the IBM Lotus.

The plc file stores add-in functions macros applications.

Most likely some old format without support. No further information could be found.

Suggested software to open plc file:

Associated software actions with the plc file

Software apps that import plc files:

Microsoft Windows

P-CAD database

File type category:
Database file

Date updated: February 24, 2019

Record marked as obsolete and not updated for a long time.

The plc file extension is associated with the P-CAD, a CAD solution for Microsoft Windows operating system, developed by Altium.

The plc file contains database from P-CAD. Probably obsolete format.

How to open plc file?

Use P-CAD to work with *.plc files.

How to convert plc file?

Probably can be exported to other formats.

Suggested software to open plc file:

Associated software actions with the plc file

Software applications that can open plc files:

Microsoft Windows

Software apps that create plc files:

Microsoft Windows

Software applications that handle other tasks involving plc files:

Microsoft Windows

PL/B source code

File type category:
Source code and script file

Date updated: October 9, 2026

PL/B is a programming language optimized for screen, file and string manipulation, allowing users to create programs for various platforms. A plc file stores the program's human-readable PL/B source code rather than a compiled executable.

The source can be processed by the PL/B compiler and used to build applications for platforms supported by the PL/B software. PL/B implementations are associated with Sunbelt Computer Systems.

How to open plc file?

Open the plc file with the PL/B development tools or compiler from Sunbelt Computer Systems. These tools can compile and run the source code on a supported platform.

Because the file contains source code, a plain-text editor can also display it, but an editor will not compile or execute the PL/B program.

How to convert plc file?

There is no general-purpose converter for plc files. Use the PL/B compiler to build the source into a PL/B application or other compiler output supported by the development environment.

Converting the source to another programming language requires a manual rewrite or a tool specific to the target language.

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