Insert Header and Footer in Excel using NPOI in .NET

If you are a frequent user of working with Excel workbooks, you must be familiar with adding Headers and Footers to your file. As the name indicates, the Header in an Excel file represents the repetitive information added to the …

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Add Formula in Excel using NPOI in .NET

If you have worked with Formulas in Excel, you must know the power of using formulas to perform calculations and analysis. Using formulas is essential for creating effective spreadsheets and making informed decisions. Excel has a wide range of formulas …

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Add Comment in Excel using NPOI in .NET

In our previous article, Using NPOI for Spreadsheets in .NET, we went through and showed how you can create a Workbook with NPOI in C#. We also showed examples of how to read data from a spreadsheet and save …

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Using NPOI API for Spreadsheets in .NET: A Comprehensive Guide

NPOI is an open-source .NET API for developing applications to work with spreadsheets. It is available for free and you can use it in your .NET projects. NPOI is simple, easy to use, and can be set up easily to …

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NPOI – An Open-Source .NET API for Spreadsheets

NPOI is an open-source .NET project that provides an easy-to-use API for working with Microsoft Office file formats. It supports various file formats for Excel, Word, and PowerPoint such as XLS, XLSX, DOC, DOCX, PPT, …

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Difference Between PPT and PPTX

If you are a regular user of Microsoft PowerPoint for a long time, you must be aware of the PPT and PPTX file formats. Both these presentation file types have been part of Microsoft PowerPoint for quite some time now. …

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Difference Between DOC and DOCX

DOC and DOCX extensions refer to the popular Microsoft Word file formats that have been part of its Office suite for a long time. DOC is the oldest file type and has been widely used prior to the introduction of …

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Difference between BMP and PNG

BMP and PNG are two of the most common image file formats that you’ll encounter while working with images. Both have been frequently used in desktop and web applications until replaced by other modern image file formats such as WebP

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XLSX vs XLSB – How to Reduce Excel File Size?

XLSX and XLSB are two popular Spreadsheet file formats by Microsoft Excel to store large amounts of data in Workbooks. However, the presence of formulas, user data, and objects (such as shapes) in these files can considerably increase the file …

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Malicious PDF files and How to Protect From These?

Portable Document Format (PDF) is a digital file format for sharing content on devices like computers, phones, tablets, and other e-readers. But how secure is the PDF file? Being popular for publishing content that includes text, images, hyperlinks, …

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