The Replace File dialog replaces the contents of an existing file in the disk image with data from an external file.

The replacement preserves the file's directory entry while updating its data, timestamps, and size as needed.

Changes are staged and are not applied until Replace is clicked.

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• Menu: Edit -> Replace File
• Toolbar: Replace File
• Context Menu: Replace File (File Panel)

This dialog is only available for valid files and is disabled for:

• Directories
• Volume labels
• Zero-length files

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The dialog compares the original file in the image with the new file selected from the host system.

Both sides are presented side-by-side, making the resulting changes clear before the replacement is applied.

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The Original File section displays information about the file currently stored in the disk image.

This includes:

• File name
• Last written date
• File size

These values represent the current state of the file before replacement.

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The New File section displays information about the external file that will replace the original.

This includes:

• File name
• Last written date
• File size

Each item includes a checkbox that controls which attributes are copied to the replaced file.

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A summary section below the file comparison clearly states the resulting changes.

This may include:

• The new file name
• The updated last written date
• The resulting file size

This provides a final confirmation of the operation before it is applied.

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• Replaces the contents of the selected file with the new file
• Applies selected metadata changes
• Marks the image as modified

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• Closes the dialog without making any changes

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• The file's directory entry is preserved
• Cluster allocation may change if the new file size differs
• Replacement operations are fully undoable
• The dialog operates on the active image