Could not open the PLC Backup file in GX Works3

[Premkumar.m]

Recently installed GX Works3 software. But I could not open the PLC Backup file in it.

It shows:

Unable to open the project.
The following are the possible causes.
Project file does not exist in specified path.
- The project file is read only or write-protected.
- Insufficient memory to open the project.
Data in the project file is corrupted.
- Characters such as "%'*/:<>?\| are used in the project file name, and is used at end of name.
An invalid environment dependent character has been included in the folder name or file name of the specified project.

[Crossbow]

What's the name of the file?  What's the extension?

[Nugro]

can you share the backup file ? 

[Maryann]

On 6/19/2025 at 10:51 AM, Premkumar.m said:

Recently installed GX Works3 software. But I could not open the PLC Backup file in it.

It shows:

Unable to open the project.
The following are the possible causes.
Project file does not exist in specified path.
- The project file is read only or write-protected.
- Insufficient memory to open the project.
Data in the project file is corrupted.
- Characters such as "%'*/:<>?\| are used in the project file name x trench run, and is used at end of name.
An invalid environment dependent character has been included in the folder name or file name of the specified project.

How to overcome this?

[Crossbow]

1 minute ago, Maryann said:

How to overcome this?

Since the original poster has not shared any more details or a file for us to look at, there is no way for us to help.

[Parky]

I wonder if it is a GXW2 or GXDEV file GXW3 does not support the early FX/A/Q series only the later IQF types.

[Crossbow]

On 6/23/2025 at 2:52 AM, Parky said:

I wonder if it is a GXW2 or GXDEV file GXW3 does not support the early FX/A/Q series only the later IQF types.

Most of what I have seen has been paths too long or bad file names...