Mulberry e-mail client cache
File type: Temporary file
An mbc file is a cache file used by the Mulberry e-mail client.
It contains cached data that Mulberry uses for its internal operations rather than a message or document intended for direct use.
Found 2 different file type records with the same mbc filename suffix.
File type category:
Temporary file
Date updated: October 25, 2026
The mbc file extension is associated with Mulberry, a free e-mail client for Microsoft Windows, macOS and Linux.
The mbc file stores cache data used internally by Mulberry. It is an application-specific temporary file and is not intended as a portable e-mail or document format.
An mbc file should be handled by Mulberry on Windows, macOS or Linux. It is normally accessed automatically by the e-mail client and does not need to be opened manually.
Opening the file in a text editor or another application will not display the cached e-mail data in a useful form.
An mbc file cannot be meaningfully converted because it is an internal cache rather than a user document or interchange format.
To preserve messages or other usable data, use Mulberry's message-management or export features instead of converting the cache file.
Software applications that handle other tasks involving mbc files:
Multiplatform
File type category:
Configuration file
Date updated: October 25, 2026
Record marked as obsolete and not updated for a long time.
ModBus is a communication protocol developed by Modicon in 1979 for industrial control systems, including programmable logic controllers.
The mbc file stores configuration for ModBus. The format is marked as obsolete, so it may belong to older ModBus configuration tools or systems.
Open an mbc file with the ModBus configuration software or industrial-control system that created it. Because this is an obsolete, software-specific configuration format, general-purpose applications may not interpret it correctly.
If the original software is unavailable, a plain-text editor may reveal readable settings, but editing or saving the file can make it unusable by the associated system.
No conversion details are available for the obsolete mbc file format. If the associated ModBus software supports export, use that software to save the configuration in a current format.
Otherwise, the configuration must usually be recreated manually in a compatible ModBus tool or system.
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