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NSF to XLSX converter

Convert NSF to XLSX online from any device with a free converter.

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We have already processed 5,834,576 files with total size of 9,540,721 Mbytes

About Conversion app

Convert NSF to XLSX files online with our free converter app. No matter your platform — Windows 10, Mac, Android or iPhone — you can convert NSF files rapidly.

This app supports document, audio, archive, image and video conversions. We support a wide range of popular file formats, including PDF, Word, Excel, and PowerPoint, as well as specialized formats like DWG, STL, MD, and more. Batch conversion is available for archive files

To change NSF to XLSX just upload your file, pick the output format and hit the Convert button. After the conversion is finished, download your XLSX file instantly. No email needed.

Check our video
NSF

Lotus Notes Database

The NSF (Lotus Notes Storage Format) is a proprietary file format used by IBM Notes (formerly Lotus Notes) to store emails, documents, calendars, and other data in a database-like structure. It is primarily accessed through IBM Notes or HCL Notes, but third-party tools like NSF to PST converters or NSF viewers can also read and extract data. The format supports advanced features such as rich text, attachments, encryption, and replication, making it a robust solution for enterprise-level collaboration and data management.

XLSX

Microsoft Excel Open XML Spreadsheet

XLSX is a widely used file format for spreadsheets, developed by Microsoft as part of the Office Open XML standard, succeeding the older XLS format. It is supported by Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications, ensuring cross-platform compatibility. The format is based on XML and stored in a compressed ZIP container, enabling features like advanced formulas, charts, conditional formatting, and support for large datasets while maintaining smaller file sizes compared to its predecessor.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert NSF to XLSX

Step 1
Click inside the file drop area to upload NSF file or drag & drop NSF file.
Step 2
Click on Convert button. Your NSF files will be uploaded and converted to XLSX result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the XLSX file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert NSF into many other file formats. Please see the complete list below.

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