[Online Searchable Document App and XLS Search API Code Develop powerful .NET based XLS document search engine software or utility app. Test online document text finder app for free. Download How to Search in XLS via Online App Upload XLS file to search by clicking inside the drop area or via drag and drop. Enter the search criteria by specifying the parameters. Click the “SEARCH” button to search XLS. Download the searched XLS to view instantly. How to Search XLS File via C# Install ‘Aspose.Cells for .NET’. Add a library reference (import the library) to your C# project. Load XLS file using Workbook class. Access the cells in relevant sheet. Use Find method to search Numbers, Date and Text. Code example in C# to Search in XLS Files The .xls format is the older binary file format used by Excel versions prior to 2007. Although legacy, it supports essential search capabilities. Use Cases Locating specific data entries in archived financial spreadsheets. Finding formulas or values in legacy models without upgrading the file. Searching for outdated product codes or pricing in historical datasets. Reviewing and auditing old reports while maintaining backward compatibility. Develop XLS File Search Engine via .NET Need to develop a XLS searchable software or utility? With Aspose.Cells for .NET a child API of Aspose.Total for .NET, any developer can integrate the above API C# code to program search across documents. Powerful C# library allows programming document search software solution that can support many popular formats including XLS format. C# library to Search XLS File There are three alternative options to install “Aspose.Cells for .NET” or “Aspose.Total for .NET” onto your system. Please choose one that resembles your needs and follow the step-by-step instructions: Install a NuGet Package . See Documentation Install the library using Package Manager Console within Visual Studio IDE Install the library by hand using Windows Installer System Requirements Our product is fully cross-platform and supports all major .NET implementations following ‘.NET Standard 2.0’ specification: Microsoft .NET Framework, starting from the earliest 2.0 version, and ending with the latest ‘.NET Framework 4.8’ .NET Core, starting from the earliest 2.0, and ending with the latest ‘.NET 6’ Mono >= 2.6.7 As .NET code doesn’t rely on the underlying hardware or operating system, but only on a Virtual Machine, so you are free to develop any kind of software for Windows, macOS, Android, iOS and Linux. Just make sure you have installed the corresponding version of .NET Framework, .NET Core, Windows Azure, Mono or Xamarin. We recommend using Microsoft Visual Studio, Xamarin, and MonoDevelop IDE to create C#, F#, VB.NET applications. Fore more details please refer to Product Documentation . FAQs Can I use above C# code in my application? Yes, You may download this code or copy it to use it for the development of any files text extraction and retrieval .NET based application. Is this document searchable App work only on Windows? One can search from any device, regardless of the operating system either it is Windows, Linux, Mac OS and Android, that has a modern browser and an internet connection. Is it safe to use the online app XLS Document Search? Of course! Output files will be deleted from our servers after 24 hours and download links will stop working. What browser should to use App? You can use any modern web browser, such as Google Chrome, Firefox, Opera, or Safari, for the online XLS document search. However, if you are developing a desktop application, the Aspose.Total Document Search API is recommended for smooth and efficient processing. Explore File Search Options with .NET Search in DOC (Microsoft Word Binary Format) Search in DOCX (Office 2007+ Word Document) Search in Excel Search in ODP (OpenDocument Presentation Format) Search in ODS (OpenDocument Spreadsheet) Search in ODT (OpenDocument Text File Format) Search in PDF (Portable Document Format) Search in PowerPoint Search in PPT (PowerPoint Presentation) Search in PPTX (Open XML presentation Format) Search in Word Search in XLS (Microsoft Excel Binary Format) Search in XLSX (Open XML Workbook) ]