Firstly, download and install NSF to PST Converter on your system.
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Go to the Browse button and add Lotus Notes extracted NSF files.
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Once NSF file is scanned, get a complete view of NSF. Also, select the items to export NSF file.
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Select ‘Convert to PST’ in Export Type.
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Now, choose the Browse button to select a destination path to save the PST file.
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At last, hit the Convert Now button to start the conversion process.
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(Note: It is compulsory to install Lotus Notes in the system to export NSF files)