What is a MER file?
The .MER file is primarily an HMI (Human Machine Interface) runtime application file. Developers create these files using software like FactoryTalk View Studio. Industrial companies use them to operate machine terminal displays in factories. The .MER file contains the compiled screens, tags, and communication configurations. Another common name for this format is the RSView Development Runtime File, created by Rockwell Automation.
Additionally, the .MER extension can belong to retail merchandising data files created by Multi-Ad Creator Pro, or satellite receiver firmware packages used by ALI Corp STB chipsets.
How to open MER files?
To open a standard .MER HMI file, use FactoryTalk View Studio or the FactoryTalk View Machine Edition Runtime. Engineers usually transfer these files to physical Allen-Bradley terminals. If you have a retail or firmware file, you need the specific creator software. Because .MER files have multiple possible meanings, we recommend using viewer.online/mer to identify the actual format of your file.
File inspection and preview
viewer.online/mer analyzes .MER files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Summary
Because .MER files use the known DOC format, viewer.online/mer can safely open and display them online, eliminating compatibility problems.