Altium Designer Assembler error message
File type: Various data file
An ers file contains error messages generated by the Assembler component associated with Altium Designer.
Altium Designer is Windows software for printed circuit board and embedded software design.
Found 3 different file type records with the same ers filename suffix.
File type category:
Various data file
Date updated: October 27, 2026
The ers file extension is associated with Altium Designer, which is developed for Microsoft Windows by Altium.
Altium Designer is used to design printed circuit boards and embedded software. Its Assembler is part of the TASKING embedded software tools distributed with Altium Designer. These tools can be used to write, assemble, and compile applications for platforms including PowerPC and ARM.
An ers file stores the error messages recorded by the Assembler. It is a diagnostic file associated with an assembly or build process, rather than a PCB design or application source file.
Use Altium Designer on Microsoft Windows to view an ers file and its recorded Assembler messages.
If the file does not open from Altium Designer, it can be inspected with a plain-text editor if its contents are stored as readable text. Editing the file is not recommended because it is generated as a diagnostic record.
An ers file is an Assembler diagnostic record and normally has no useful conversion target. It is generally regenerated when the relevant assembly or build process is run again.
Software apps that create ers files:
Microsoft Windows
Software applications that handle other tasks involving ers files:
Microsoft Windows
File type category:
Various data file
Date updated: September 28, 2026
The header can contain information such as the image dimensions, data type, coordinate system, georeferencing, and the location of the associated raster data. ER Mapper uses this information to interpret and display the image correctly.
ER Mapper was developed by Earth Resource Mapping as software for processing and analysing geospatial imagery. The ERS format is a legacy geospatial raster format, although ERS datasets may still be encountered in existing mapping and remote-sensing projects.
Open the ERS file with ER Mapper or with a geospatial application that supports ER Mapper raster datasets. Keep the ERS header together with its associated image-data file; opening the header alone may not provide the image.
ER Mapper is primarily available for Windows. Other GIS applications may also open the dataset if they support this format, but support can vary.
To convert an ERS dataset, open it in ER Mapper or a compatible GIS application and export it to a format such as GeoTIFF. The associated raster-data file is required for conversion; the ERS header by itself does not contain the complete image.
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File type category:
Temporary file
Date updated: November 8, 2017
The ers file extension is used by Pro/ENGINEER. It is a kind of temporary file. Temporary files may be created by computer programs for a variety of purposes; principally when a program cannot allocate enough memory for its tasks, when the program is working on data bigger than architecture's address space, or as a primitive form of inter-process communication.
The ers extension files is not meant to be opened manually by the user.
Files with ers extension are not convertable.
Software applications that handle other tasks involving ers files:
Microsoft Windows
