{"id":2239,"date":"2024-10-17T12:55:00","date_gmt":"2024-10-17T12:55:00","guid":{"rendered":"http:\/\/localhost:10003\/?p=2239"},"modified":"2025-08-04T13:56:23","modified_gmt":"2025-08-04T13:56:23","slug":"ouverture-rapide-et-facile-de-documents-xlsx-excel-en-c","status":"publish","type":"post","link":"https:\/\/xceed.com\/fr\/blog\/tutorials\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\/","title":{"rendered":"Ouverture rapide et facile des documents Excel xlsx dans C#"},"content":{"rendered":"\n

Manipulating xlsx files in .NET can appear complicated and tedious however, doing so only requires a few lines of codes while using Xceed Workbooks for .NET. Let’s look at a quick example :<\/p>\n\n\n\n


To Open an existing xlsx :<\/p>\n\n\n\n

using( var doc = Workbook.Load( \"test.xlsx\") ) \/\/ Loads an existing Workbook named \u201ctest.xlsx\u201d.<\/code>
{<\/code>
var worksheet = doc.Worksheets[ 1 ]; \/\/ Gets the second worksheet.<\/code>
worksheet.Cells[ \u201cA2\u201d ].Value = 12; \/\/ Sets a value in \u201cA2\u201d.<\/code>
var stream = new MemoryStream();<\/code>
doc.SaveAs( stream); \/\/ Saves the result in a stream.<\/code>
}<\/code><\/p>\n\n\n\n

var stream = new MemoryStream();<\/code>
using( var doc = Workbook.Create( stream ) ) \/\/ Creates a workbook in a stream.<\/code>
{<\/code>
var worksheet = doc.Worksheets[ 1 ]; \/\/ Gets the second worksheet.<\/code>
worksheet.Cells[ \u201cA2\u201d ].Value = 12; \/\/ Sets a value in \u201cA2\u201d.<\/code>
worksheet.Columns[ 1 ].Cells[ 0 ].Formula = \u201c=SUM(A1:A2)\u201d; \/\/Sets a formula in \u201cB1\u201d.<\/code>
doc.CalculateFormulas(); \/\/ Calculate the Value of \u201cB1\u201d, which contains a formula and for all other Worksheets containing cells with formulas.<\/code>
doc.Save(); \/\/ Saves the Workbook in the stream.<\/code>
}<\/code><\/p>\n\n\n\n

As you can see, with just a few lines of codes you’ll be able to create\/modify\/load workbooks. We offer a trial version of the product should you want to try it for yourself. We’re available on both Nuget and directly on our website : http:\/\/xceed.com\/en\/our-products\/product\/workbooks-for-net<\/a> (click on try it now).<\/p>\n\n\n\n

Have questions or issues? Drop us an email at support@xceed.com<\/a>.<\/p>\n\n\n\n

Have fun!<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

La manipulation des fichiers xlsx dans .NET peut sembler compliqu\u00e9e et fastidieuse, mais elle ne n\u00e9cessite que quelques lignes de code \u00e0 l'aide de Xceed Workbooks for .NET.<\/p>","protected":false},"author":2,"featured_media":2235,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[141,60],"tags":[],"class_list":["post-2239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all","category-tutorials"],"acf":[],"yoast_head":"\nQuick and Easy Way of Opening xlsx excel documents in C# - Xceed<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/xceed.com\/fr\/blog\/tutoriels\/ouverture-rapide-et-facile-de-documents-xlsx-excel-en-c\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quick and Easy Way of Opening xlsx excel documents in C# - Xceed\" \/>\n<meta property=\"og:description\" content=\"Manipulating xlsx files in .NET can appear complicated and tedious however, doing so only requires a few lines of codes while using Xceed Workbooks for .NET.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/xceed.com\/fr\/blog\/tutoriels\/ouverture-rapide-et-facile-de-documents-xlsx-excel-en-c\/\" \/>\n<meta property=\"og:site_name\" content=\"Xceed\" \/>\n<meta property=\"article:published_time\" content=\"2024-10-17T12:55:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-04T13:56:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/xceed.com\/wp-content\/uploads\/2024\/10\/blog_WBN.png\" \/>\n\t<meta property=\"og:image:width\" content=\"393\" \/>\n\t<meta property=\"og:image:height\" content=\"392\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Alain Jreij\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alain Jreij\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/\"},\"author\":{\"name\":\"Alain Jreij\",\"@id\":\"https:\\\/\\\/xceed.com\\\/fr\\\/#\\\/schema\\\/person\\\/2d9169e6fd8ae4a8f58a9e1cc9a73778\"},\"headline\":\"Quick and Easy Way of Opening xlsx excel documents in C#\",\"datePublished\":\"2024-10-17T12:55:00+00:00\",\"dateModified\":\"2025-08-04T13:56:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/\"},\"wordCount\":125,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/xceed.com\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/xceed.com\\\/wp-content\\\/uploads\\\/2024\\\/10\\\/blog_WBN.png\",\"articleSection\":[\"All\",\"Tutorials\"],\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/\",\"url\":\"https:\\\/\\\/xceed.com\\\/blog\\\/tutorials\\\/quick-and-easy-way-of-opening-xlsx-excel-documents-in-c\\\/\",\"name\":\"Quick and Easy Way of Opening xlsx excel documents in C# - 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