You can try the following methods to recover a corrupted Lotus Notes archive file:
Run the fixup utility: The fixup utility is a built-in tool in Lotus Notes that can repair corrupted files. To use it, first make a backup of your archive file, then open Lotus Notes and go to File > Database > Properties. Select the "Info" tab and click the "Fixup" button. Wait for the process to complete and then check if the file is repaired.
Use the compact utility: The compact utility is another built-in tool in Lotus Notes that can fix corrupted files. To use it, open Lotus Notes and go to File > Database > Properties. Select the "Info" tab and click the "Compact" button. Wait for the process to complete and then check if the file is repaired.
Copy the archive file to a new location: Copying the archive file to a new location can sometimes fix corruption issues. Make a backup of your file, then copy it to a new location and try opening it from there.
Use third-party recovery tools: There are various third-party recovery tools available that can help recover corrupted Lotus Notes archive files. Some popular tools include SysTools Lotus Notes Recovery, Recovery for Lotus Notes, and Kernel for Lotus Notes. These tools are often able to recover data from severely corrupted files that cannot be repaired using the built-in tools.
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