If no solution works and the data is critical, professional recovery is your last resort.

: Ensure that the user or service trying to access the file has the correct permissions. Adjust permissions as needed.

If your system crashed (blue screen, power loss) while the file was being written to disk, the file header might show an "updated" flag that doesn't match the actual file size. The software sees the flag but cannot find the data, triggering the "unable to open" safety lock.

If your system permissions changed, the game might be unable to "open" the file because it doesn't have permission to write to it. Go to the game’s data folder. Right-click the folder and select . Uncheck Read-only at the bottom.

Click and choose "Apply changes to this folder, subfolders and files." 4. Free Up Disk Space

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