ERWin Entity Relationship Diagram
Computer Associates
Data Files
mime-type/not-avalible
10/25/2021
If you want to edit ER1 file and not damage it, you should install dedicated software Of course, there are probably ER1 Online Editors available, but none of them will be able to provide such a wide range of available options as dedicated software.
Remember, that not all of the mentioned programs will allow you to edit the ER1 file. Additional information about the ER1 file extension can be found here.
Definitely the best solution. Use any of the programs that support the ER1 file to check if it allows you to edit the file. You will avoid the danger of virus installation if you download the software from the software developer 's website. You will find links to the software developers' websites on the subpage of each program. Below you will find some examples of software programs that support the ER1 file (so it is very possible that they can edit files in ER1 format).
All available programs supporting the ER1 file
Some file formats are just plain text files that you can open with Notepad. However, such manual editing of the ER1 file or any other file may result in damage to the file. When you save the changes, you may no longer open the ER1 file. By far the safest way is to use file editing programs that works with the ER1 extension.
It seems that one of the software on the list must be able to edit the ER1 files. Still not resolved your file editing issue? Try other solutions. Verified websites with the option to edit the file in the ER1 format below.
Free Online File Edit Service
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