An er1 file extension is mainly related to CA ERwin Data Modeler data modeling utility. These er1 files store program data resources.

There is one other file type using
the ER1 file extension!

empty icon.er1 - Visible Advantage data

Detailed description

Software that open er1 file

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ER1 file extension - AllFusion ERWin data

What is er1 file? How to open er1 files?

File type specification:

Various data file type icon Various data file type

The er1 file extension is used by CA ERwin Data Modeler, a data modeling product that enables you to visualize complex data structures, inventory information assets and establish enterprise-wide standards for managing data.

The er1 file contains program data resources.

The default software associated to open er1 file:

CA ERwin Data Modeler picture or screenshot

CA Technologies logoCA ERwin Data Modeler  Microsoft Windows software

Company or developer:
CA Technologies

CA ERwin Data Modeling provides a simple, visual interface to design and manage your complex data environment -whether on-premise or in the Cloud.

Help how to open:

Use CA ERwin Data Modeler to open and work with *.er1 files.

How to convert:

Compatible tools may be able to export *.er1 files to other formats.

List of recommended software applications associated to the .er1 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 er1 file, edit er1 file, convert er1 file, view er1 file, play er1 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with er1 file - AllFusion ERWin data

Click on the software link for more information about CA ERwin Data Modeler. CA ERwin Data Modeler uses er1 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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