Create, read and edit Excel files in ASP.NET (2023)

March 29, 202324 minutes to read

Syncfusion Excel library for ASP.NET platformCan be used to create, read, edit excel files. This also converts Excel files to PDF.

Create a simple Excel report

The following steps illustrate how to create a simple invoice format Excel document in ASP.NET.

  1. Create a new ASP.NET Web Application project.

Create, read and edit Excel files in ASP.NET (1)

  1. InstallSync Fusion.XlsIO.AspNetNuGet packages as references to .NET Framework applicationsNuGet.org.

Create, read and edit Excel files in ASP.NET (2)
Create, read and edit Excel files in ASP.NET (3)

  1. Add a new Web Form to the ASP.NET project. Right-click the project and select Add > New Item and add a web form from the list. Name it Home.

    (Video) Uploading And Reading Excel File using ASP.NET Core MVC

  2. Add a new button in MainPage.aspx as shown below.

    <web format xmlns=“http://www.w3.org/1999/xhtml”><head to speak="server"> <title>title>head><Body> <form ID="Table 1" to speak="server"> <distribute> <ASP: button ID="Button 1" to speak="server" text="Create document" when clicked="Click the button" /> distribute> form>Body>web format>
    See Also
    Reading data from Excel (.xls) files in ASP.NET

  3. Include the following namespaces in the MainPage.aspx.cs file.

    use SyncFusion.XlsIO;use System Diagram;
    import SyncFusion.XlsIOimport System Diagram
    (Video) Excel(.xlsx) read write using C# in .NET/.NET Core

  4. Include the following code snippet in the button click event in MainPage.aspx.cs to create an excel file and download it

    use (Excel engine Excel engine = new Excel engine()){ application application = Excel engine.stand out; application.default version = Excel version.xlsx; //Create workbook iWorkbook workbook = application.work log.create(1); worksheet Spreadsheets = workbook.worksheet[0]; //add pictures IImagenForma form = Spreadsheets.photo.add photo(1, 1, server.map path(“App_Data/AdventureCycles-Logo.png”), 20, 20); // Disable gridlines in the worksheet Spreadsheets.EsGridLinesVisible = Incorrect; //Enter values ​​for cells A3 to A5 Spreadsheets.scope[“A3”].text = "46036 Michigan Avenue"; Spreadsheets.scope["A4"].text = "Guangzhou, USA"; Spreadsheets.scope[“A5”].text = "Phone: +1 231-231-2310"; // make the text bold Spreadsheets.scope[“A3：A5”].cell style.Fuente.bold = real; //Merge Cells Spreadsheets.scope[“D1：E1”].to bind(); //Enter text in cell D1 and apply formatting. Spreadsheets.scope["D1"].text = "bill"; Spreadsheets.scope["D1"].cell style.Fuente.bold = real; Spreadsheets.scope["D1"].cell style.Fuente.RGB color = color.from Argb(42, 118, 189); Spreadsheets.scope["D1"].cell style.Fuente.size = 35; //apply alignment in cell D1 Spreadsheets.scope["D1"].cell style.Horizontal alignment = ExcelH alignment.HA Linear Derecha; Spreadsheets.scope["D1"].cell style.vertical alignment = ExcelVALinear.align top; //Enter values ​​for cells D5 to E8 Spreadsheets.scope[“D5”].text = "bill#"; Spreadsheets.scope[“E5”].text = "date"; Spreadsheets.scope["D6"].number = 1028; Spreadsheets.scope["E6"].courage = "December 31, 2018"; Spreadsheets.scope[D7].text = "Customer Identification"; Spreadsheets.scope["E7"].text = "Terms"; Spreadsheets.scope["D8"].number = 564; Spreadsheets.scope[“E8”].text = "required upon receipt"; //Apply RGB background color to cells D5 to E8 Spreadsheets.scope[“D5：E5”].cell style.color = color.from Argb(42, 118, 189); Spreadsheets.scope[“D7：E7”].cell style.color = color.from Argb(42, 118, 189); // apply a known color to the text in cells D5 to E8 Spreadsheets.scope[“D5：E5”].cell style.Fuente.color = Excel Known Colors.Blanco; Spreadsheets.scope[“D7：E7”].cell style.Fuente.color = Excel Known Colors.Blanco; // Make text from D5 to E8 bold Spreadsheets.scope[“D5：E8”].cell style.Fuente.bold = real; //Apply alignment to cells D5 to E8 Spreadsheets.scope[“D5：E8”].cell style.Horizontal alignment = ExcelH alignment.H align center; Spreadsheets.scope[“D5：E5”].cell style.vertical alignment = ExcelVALinear.VAlignCenter; Spreadsheets.scope[“D7：E7”].cell style.vertical alignment = ExcelVALinear.VAlignCenter; Spreadsheets.scope[“D6：E6”].cell style.vertical alignment = ExcelVALinear.align top; //Enter value in cell A7 and apply formatting Spreadsheets.scope["A7"].text = " Bill to"; Spreadsheets.scope["A7"].cell style.color = color.from Argb(42, 118, 189); Spreadsheets.scope["A7"].cell style.Fuente.bold = real; Spreadsheets.scope["A7"].cell style.Fuente.color = Excel Known Colors.Blanco; //apply alignment Spreadsheets.scope["A7"].cell style.Horizontal alignment = ExcelH alignment.align left; Spreadsheets.scope["A7"].cell style.vertical alignment = ExcelVALinear.VAlignCenter; //Enter values ​​in cells A8 to A12 Spreadsheets.scope[“A8”].text = "Stein"; Spreadsheets.scope[“A9”].text = "Great Lakes Food Market"; Spreadsheets.scope["A10"].text = "20 Whitehall Road"; Spreadsheets.scope["A11"].text = "North Muskegon, USA."; Spreadsheets.scope["A12"].text = “+1 231-654-0000”; //Create a hyperlink to the email in cell A13 hyperlink hyperlink = Spreadsheets.Hyperlink.Add to(Spreadsheets.scope["A13"]); hyperlink.type = ExcelHyperLinkTypeExcelHyperLinkType.url; hyperlink.address = “Steyn@greatlakes.com”; hyperlink.Screen Tips = "send email"; // Merge columns A and B from row 15 to row 22 Spreadsheets.scope[“A15：B15”].to bind(); Spreadsheets.scope[“A16：B16”].to bind(); Spreadsheets.scope[“A17：B17”].to bind(); Spreadsheets.scope[“A18：B18”].to bind(); Spreadsheets.scope["A19：B19"].to bind(); Spreadsheets.scope[“A20：B20”].to bind(); Spreadsheets.scope[“A21：B21”].to bind(); Spreadsheets.scope[“A22：B22”].to bind(); // Enter product details and price Spreadsheets.scope[“A15”].text = " describe"; Spreadsheets.scope[“P15”].text = "quantity"; Spreadsheets.scope[“D15”].text = "unit price"; Spreadsheets.scope[“E15”].text = "quantity"; Spreadsheets.scope[“A16”].text = "Cabrales Cheese"; Spreadsheets.scope[“A17”].text = "squid"; Spreadsheets.scope["A18"].text = "spaghetti"; Spreadsheets.scope["A19"].text = "cereals"; Spreadsheets.scope[“A20”].text = "Frozen"; Spreadsheets.scope[“C16”].number = 3; Spreadsheets.scope[“C17”].number = 2; Spreadsheets.scope[“C18”].number = 1; Spreadsheets.scope["C19"].number = 4; Spreadsheets.scope[“C20”].number = 3; Spreadsheets.scope["D16"].number = 21; Spreadsheets.scope[“D17”].number = 54; Spreadsheets.scope["D18"].number = 10; Spreadsheets.scope["D19"].number = 20; Spreadsheets.scope[“D20”].number = 30; Spreadsheets.scope["D23"].text = "all"; // apply number formatting Spreadsheets.scope[“D16：E22”].number format = “$.00”; Spreadsheets.scope[“E23”].number format = “$.00”; //Apply the increment formula for the column quantity by multiplying the quantity and unit price application.Enable incremental formula = real; Spreadsheets.scope[“E16：E20”].official = “=C16*P16”; // formula to calculate sum Spreadsheets.scope[“E23”].official = “=SUMA(E16:E22)”; //apply border Spreadsheets.scope[“A16：E22”].cell style.frame[ExcelBordersIndexExcelBordersIndex.top edge].line type = Excel line style.Delgado; Spreadsheets.scope[“A16：E22”].cell style.frame[ExcelBordersIndexExcelBordersIndex.below].line type = Excel line style.Delgado; Spreadsheets.scope[“A16：E22”].cell style.frame[ExcelBordersIndexExcelBordersIndex.top edge].color = Excel Known Colors.gray_25_percentage; Spreadsheets.scope[“A16：E22”].cell style.frame[ExcelBordersIndexExcelBordersIndex.below].color = Excel Known Colors.gray_25_percentage; Spreadsheets.scope[“A23：E23”].cell style.frame[ExcelBordersIndexExcelBordersIndex.top edge].line type = Excel line style.Delgado; Spreadsheets.scope[“A23：E23”].cell style.frame[ExcelBordersIndexExcelBordersIndex.below].line type = Excel line style.Delgado; Spreadsheets.scope[“A23：E23”].cell style.frame[ExcelBordersIndexExcelBordersIndex.top edge].color = Excel Known Colors.Black person; Spreadsheets.scope[“A23：E23”].cell style.frame[ExcelBordersIndexExcelBordersIndex.below].color = Excel Known Colors.Black person; //Apply font settings for cells containing product details Spreadsheets.scope[“A3：E23”].cell style.Fuente.font name = "Arial"; Spreadsheets.scope[“A3：E23”].cell style.Fuente.size = 10; Spreadsheets.scope[“A15：E15”].cell style.Fuente.color = Excel Known Colors.Blanco; Spreadsheets.scope[“A15：E15”].cell style.Fuente.bold = real; Spreadsheets.scope[“D23：E23”].cell style.Fuente.bold = real; // apply cell color Spreadsheets.scope[“A15：E15”].cell style.color = color.from Argb(42, 118, 189); // apply alignment to cell with product details Spreadsheets.scope[“A15”].cell style.Horizontal alignment = ExcelH alignment.align left; Spreadsheets.scope[“C15：C22”].cell style.Horizontal alignment = ExcelH alignment.H align center; Spreadsheets.scope[“D15：E15”].cell style.Horizontal alignment = ExcelH alignment.H align center; // apply row height and column width to make it look nice Spreadsheets.scope["A1"].column width = 36; Spreadsheets.scope["B1"].column width = 11; Spreadsheets.scope[“C1”].column width = 8; Spreadsheets.scope[“D1：E1”].column width = 18; Spreadsheets.scope["A1"].line height = 47; Spreadsheets.scope[“A2”].line height = 15; Spreadsheets.scope[“A3：A4”].line height = 15; Spreadsheets.scope[“A5”].line height = 18; Spreadsheets.scope["A6"].line height = 29; Spreadsheets.scope["A7"].line height = 18; Spreadsheets.scope[“A8”].line height = 15; Spreadsheets.scope[“A9：A14”].line height = 15; Spreadsheets.scope[“A15：A23”].line height = 18; //Save the workbook to disk in xlsx format workbook.Save as("salida.xlsx", answer, Excel download type.Open, ExcelHttpContentTypeExcelHttpContentType.excel2016);}
    'Create an instance of ExcelEngineuse Excel engine as Excel engine = new Excel engine() dark application as application = Excel engine.stand out application.default version = Excel version.xlsx 'Create workbook dark workbook as iWorkbook = application.work log.create(1) dark Spreadsheets as worksheet = workbook.worksheet(0) 'add pictures dark form as IImagenForma = Spreadsheets.photo.add photo(1, 1, server.map path(“App_Data/AdventureCycles-Logo.png”), 20, 20) 'Disable gridlines in the worksheet Spreadsheets.EsGridLinesVisible = Incorrect 'Enter values ​​into cells A3 to A5 Spreadsheets.scope(“A3”).text = "46036 Michigan Avenue" Spreadsheets.scope("A4").text = "Guangzhou, USA" Spreadsheets.scope(“A5”).text = "Phone: +1 231-231-2310" ' Make the text bold Spreadsheets.scope(“A3：A5”).cell style.Fuente.bold = real 'Merge Cells Spreadsheets.scope(“D1：E1”).to bind() 'Enter text in cell D1 and apply formatting. Spreadsheets.scope("D1").text = "bill" Spreadsheets.scope("D1").cell style.Fuente.bold = real Spreadsheets.scope("D1").cell style.Fuente.RGB color = color.from Argb(42, 118, 189) Spreadsheets.scope("D1").cell style.Fuente.size = 35 'Apply alignment to cell D1 Spreadsheets.scope("D1").cell style.Horizontal alignment = ExcelH alignment.HA Linear Derecha Spreadsheets.scope("D1").cell style.vertical alignment = ExcelVALinear.align top 'Enter values ​​in cells D5 to E8 Spreadsheets.scope(“D5”).text = "bill#" Spreadsheets.scope(“E5”).text = "date" Spreadsheets.scope("D6").number = 1028 Spreadsheets.scope("E6").courage = "December 31, 2018" Spreadsheets.scope(D7).text = "Customer Identification" Spreadsheets.scope("E7").text = "Terms" Spreadsheets.scope("D8").number = 564 Spreadsheets.scope(“E8”).text = "required upon receipt" 'Apply RGB background color to cells D5 to E8 Spreadsheets.scope(“D5：E5”).cell style.color = color.from Argb(42, 118, 189) Spreadsheets.scope(“D7：E7”).cell style.color = color.from Argb(42, 118, 189) 'Apply a known color to the text in cells D5 to E8 Spreadsheets.scope(“D5：E5”).cell style.Fuente.color = Excel Known Colors.Blanco Spreadsheets.scope(“D7：E7”).cell style.Fuente.color = Excel Known Colors.Blanco ' Make text from D5 to E8 bold Spreadsheets.scope(“D5：E8”).cell style.Fuente.bold = real 'Apply alignment to cells D5 to E8 Spreadsheets.scope(“D5：E8”).cell style.Horizontal alignment = ExcelH alignment.H align center Spreadsheets.scope(“D5：E5”).cell style.vertical alignment = ExcelVALinear.VAlignCenter Spreadsheets.scope(“D7：E7”).cell style.vertical alignment = ExcelVALinear.VAlignCenter Spreadsheets.scope(“D6：E6”).cell style.vertical alignment = ExcelVALinear.align top 'Enter value in cell A7 and apply formatting Spreadsheets.scope("A7").text = " Bill to" Spreadsheets.scope("A7").cell style.color = color.from Argb(42, 118, 189) Spreadsheets.scope("A7").cell style.Fuente.bold = real Spreadsheets.scope("A7").cell style.Fuente.color = Excel Known Colors.Blanco 'Apply the alignment Spreadsheets.scope("A7").cell style.Horizontal alignment = ExcelH alignment.align left Spreadsheets.scope("A7").cell style.vertical alignment = ExcelVALinear.VAlignCenter 'Enter values ​​in cells A8 to A12 Spreadsheets.scope(“A8”).text = "Stein" Spreadsheets.scope(“A9”).text = "Great Lakes Food Market" Spreadsheets.scope("A10").text = "20 Whitehall Road" Spreadsheets.scope("A11").text = "North Muskegon, USA." Spreadsheets.scope("A12").text = “+1 231-654-0000” 'Create a hyperlink to the email in cell A13 dark hyperlink as hyperlink = Spreadsheets.Hyperlink.Add to(Spreadsheets.scope("A13")) hyperlink.type = ExcelHyperLinkTypeExcelHyperLinkType.url hyperlink.address = “Steyn@greatlakes.com” hyperlink.Screen Tips = "send email" 'Merge columns A and B from line 15 to line 22 Spreadsheets.scope(“A15：B15”).to bind() Spreadsheets.scope(“A16：B16”).to bind() Spreadsheets.scope(“A17：B17”).to bind() Spreadsheets.scope(“A18：B18”).to bind() Spreadsheets.scope("A19：B19").to bind() Spreadsheets.scope(“A20：B20”).to bind() Spreadsheets.scope(“A21：B21”).to bind() Spreadsheets.scope(“A22：B22”).to bind() 'Enter product details and prices Spreadsheets.scope(“A15”).text = " describe" Spreadsheets.scope(“P15”).text = "quantity" Spreadsheets.scope(“D15”).text = "unit price" Spreadsheets.scope(“E15”).text = "quantity" Spreadsheets.scope(“A16”).text = "Cabrales Cheese" Spreadsheets.scope(“A17”).text = "squid" Spreadsheets.scope("A18").text = "spaghetti" Spreadsheets.scope("A19").text = "cereals" Spreadsheets.scope(“A20”).text = "Frozen" Spreadsheets.scope(“C16”).number = 3 Spreadsheets.scope(“C17”).number = 2 Spreadsheets.scope(“C18”).number = 1 Spreadsheets.scope("C19").number = 4 Spreadsheets.scope(“C20”).number = 3 Spreadsheets.scope("D16").number = 21 Spreadsheets.scope(“D17”).number = 54 Spreadsheets.scope("D18").number = 10 Spreadsheets.scope("D19").number = 20 Spreadsheets.scope(“D20”).number = 30 Spreadsheets.scope("D23").text = "all" 'Apply number formatting Spreadsheets.scope(“D16：E22”).number format = “$.00” Spreadsheets.scope(“E23”).number format = “$.00” 'Apply the increment formula to the amount column by multiplying the quantity and unit price application.Enable incremental formula = real Spreadsheets.scope(“E16：E20”).official = “=C16*P16” 'The formula for the sum Spreadsheets.scope(“E23”).official = “=SUMA(E16:E22)” 'Apply the border Spreadsheets.scope(“A16：E22”).cell style.frame(ExcelBordersIndexExcelBordersIndex.top edge).line type = Excel line style.Delgado Spreadsheets.scope(“A16：E22”).cell style.frame(ExcelBordersIndexExcelBordersIndex.below).line type = Excel line style.Delgado Spreadsheets.scope(“A16：E22”).cell style.frame(ExcelBordersIndexExcelBordersIndex.top edge).color = Excel Known Colors.gray_25_percentage Spreadsheets.scope(“A16：E22”).cell style.frame(ExcelBordersIndexExcelBordersIndex.below).color = Excel Known Colors.gray_25_percentage Spreadsheets.scope(“A23：E23”).cell style.frame(ExcelBordersIndexExcelBordersIndex.top edge).line type = Excel line style.Delgado Spreadsheets.scope(“A23：E23”).cell style.frame(ExcelBordersIndexExcelBordersIndex.below).line type = Excel line style.Delgado Spreadsheets.scope(“A23：E23”).cell style.frame(ExcelBordersIndexExcelBordersIndex.top edge).color = Excel Known Colors.Black person Spreadsheets.scope(“A23：E23”).cell style.frame(ExcelBordersIndexExcelBordersIndex.below).color = Excel Known Colors.Black person 'Apply font settings to cells containing product details Spreadsheets.scope(“A3：E23”).cell style.Fuente.font name = "Arial" Spreadsheets.scope(“A3：E23”).cell style.Fuente.size = 10 Spreadsheets.scope(“A15：E15”).cell style.Fuente.color = Excel Known Colors.Blanco Spreadsheets.scope(“A15：E15”).cell style.Fuente.bold = real Spreadsheets.scope(“D23：E23”).cell style.Fuente.bold = real 'Apply cell color Spreadsheets.scope(“A15：E15”).cell style.color = color.from Argb(42, 118, 189) 'Apply the alignment to the cell containing the product details Spreadsheets.scope(“A15”).cell style.Horizontal alignment = ExcelH alignment.align left Spreadsheets.scope(“C15：C22”).cell style.Horizontal alignment = ExcelH alignment.H align center Spreadsheets.scope(“D15：E15”).cell style.Horizontal alignment = ExcelH alignment.H align center 'Apply row height and column width to make it look nice Spreadsheets.scope("A1").column width = 36 Spreadsheets.scope("B1").column width = 11 Spreadsheets.scope(“C1”).column width = 8 Spreadsheets.scope(“D1：E1”).column width = 18 Spreadsheets.scope("A1").line height = 47 Spreadsheets.scope(“A2”).line height = 15 Spreadsheets.scope(“A3：A4”).line height = 15 Spreadsheets.scope(“A5”).line height = 18 Spreadsheets.scope("A6").line height = 29 Spreadsheets.scope("A7").line height = 18 Spreadsheets.scope(“A8”).line height = 15 Spreadsheets.scope(“A9：A14”).line height = 15 Spreadsheets.scope(“A15：A23”).line height = 18 'Save and download the Excel file workbook.Save as("salida.xlsx", answer, Excel download type.Open, ExcelHttpContentTypeExcelHttpContentType.excel2016)fin use
    (Video) C# Excel Tutorial - #1 - Open and Read Excel Files

For a complete working example of how to create an Excel file in ASP.NET in C#, seeThis GitHub page.

When you run the program, you will get the excel file as shown below.
Create, read and edit Excel files in ASP.NET (4)

(Video) Read Data From Excel File & render in view Asp.Net MVC

Read and edit excel files

The following code snippets illustrate how to read and edit Excel files in ASP.NET Web Forms.

//Create an instance of ExcelEngineuse (Excel engine Excel engine = new Excel engine()){ //Create an instance of the Excel Application object application application = Excel engine.stand out; //Set the default application version application.default version = Excel version.xlsx; //Load an existing Excel workbook to IWorkbook iWorkbook workbook = application.work log.Open(server.map path(“App_Data/Example.xlsx”)); //Get the first worksheet of the workbook in IWorksheet worksheet Spreadsheets = workbook.worksheet[0]; // assign some text in the cell Spreadsheets.scope[“A3”].text = "Hello World"; // access cell value from Excel era courage = Spreadsheets.scope["A1"].courage; //Save the Excel document workbook.Save as("salida.xlsx", answer, Excel download type.request dialog, ExcelHttpContentTypeExcelHttpContentType.excel2016);}
'Create an instance of ExcelEngineuse Excel engine as Excel engine = new Excel engine() 'Create an instance of the Excel application object dark application as application = Excel engine.stand out 'Set the default application version application.default version = Excel version.xlsx 'Load an existing Excel workbook into IWorkbook dark workbook as iWorkbook = application.work log.Open(server.map path(“App_Data/Example.xlsx”)) 'Get the first worksheet in the workbook in IWorksheet dark Spreadsheets as worksheet = workbook.worksheet(0) 'Assign text to cell Spreadsheets.scope(“A3”).text = "Hello World" 'Get the cell value from Excel dark courage as era = Spreadsheets.scope("A1").courage 'Save the Excel document workbook.Save as("salida.xlsx", answer, Excel download type.request dialog, ExcelHttpContentTypeExcelHttpContentType.excel2016)fin use
(Video) Create Excel file in ASP.NET

For a complete working example of how to read and edit Excel files in ASP.NET in C#, seeThis GitHub page.

use

Starting with v16.2.0.x, if you reference the Syncfusion assembly from a test configuration or NuGet source, you must also add a "Syncfusion.Licensing" assembly reference and include the license key in your project. Please refer to thisassociateLearn how to register a Syncfusion license key to use our components in your application. You can also explore ourASP.NET Excel Library DemoIt shows how to create and modify an Excel file from C# using only five lines of code.

FAQs

How to read and write Excel file in asp net? ›

How to Read Excel File in Data Set Using ASP.Net
  1. First of all, open a new Excel Sheet and enter the information that you want to add. ...
  2. Now you need to add a Drop Down List, a List Item, a Label, and a Grid View to your application. ...
  3. Now add this code in the selected index change of the drop-down list:
Jan 3, 2021

Know More ›
How to convert a read only Excel file to an editable file microsoft Excel tips? ›

How to remove “Read-only” from a Read-only Excel file?
  1. Go to the folder where you saved the “Read-only” Excel file.
  2. Right-click on the file and select “Properties”. How To Remove Read Only From Excel - File Properties.
  3. In “Attributes”, tick the “Read-only” option to remove it. Then, click Apply > Ok.
May 12, 2022

Learn More ›
How to read and write Excel file in asp net c#? ›

Steps to read and write data from Excel using C#
  1. Step 1: Create a new C# project in Visual Studio. ...
  2. Step 2: Add COM Component Reference i.e. Excel 14 Object. ...
  3. Step 3: Import the namespaces in C# code. ...
  4. Step 4: Write Data to Excel File. ...
  5. Step 5: Read Data from Excel File. ...
  6. Step 6: Run the C# Program.
Mar 6, 2023

Keep Reading ›
How to create a XLSX file in asp net c#? ›

Create Excel XLSX File with Table in C#
  1. Load an Excel workbook or create a new one using Workbook class.
  2. Add data to the cells of the worksheet.
  3. Add a new ListObject to the worksheet.
  4. Set ListObject. ShowTotals property to true.
  5. Calculate the total and save the workbook as an Excel . xlsx file.
Jan 21, 2020

Keep Reading ›
How to create a Excel file in asp net c#? ›

How to Create an Excel File in C#
  1. Download the C# Library to create Excel and CSV files.
  2. Create an ASP.NET Project Web Application.
  3. Create an Excel Workbook with the C# Library.
  4. Set cell values in an Excel worksheet Manually.
  5. Apply Formatting and Set Background Colors of Cells.
  6. Use Formulas in Cells.

Discover More Details ›
How do I bypass read only in Excel? ›

Re: Turn Off Read Only
  1. Select No when prompted to open the Excel worksheet as read-only.
  2. Choose File, followed by Save As and Browse.
  3. Click Tools at the bottom of the Save As menu and choose General Options.
  4. Under General, find the Read-only Recommended check box and uncheck it.
  5. Click OK.

Learn More ›
How do I change a File from read only to editable? ›

Remove read only
  1. Click the Microsoft Office Button. , and then click Save or Save As if you have previously saved the document.
  2. Click Tools.
  3. Click General Options.
  4. Clear the Read-only recommended check box.
  5. Click OK.
  6. Save the document. You might need to save it as another file name if you have already named the document.

Tell Me More ›
How do I convert read only Excel to editable online? ›

Remove read-only on file protected by 'Mark as final'

If a file is marked as final, it will show a pop-up upon being opened. To Remove this read-only, click on Edit Anyway. This removes the Read-Only settings. The file is now editable, and you can begin editing it.

Discover More ›
How to read a file in asp net using C#? ›

The File.ReadAllText() method opens a text file, reads all the text in the file into a string, and then closes the file. The following code reads a text file into a string. The File.ReadAllLines() method opens a text file, reads all lines of the file into a string array, and then closes the file.

Get More Info ›
How to read Excel file in asp net MVC C#? ›

How to Read Excel File in ASP.NET
  1. Install C# library to read excel file in ASP.NET.
  2. Load and access the targeted sheet in Excel file.
  3. Access ToDataTable method and return to it View.
  4. Display Excel data on a web page by using loop.
  5. Iterate through all data and build HTML table from it.

Explore More ›

How to read data from Excel sheet and insert into Datatable in C#? ›

Step 1: Create a oledb connection,command and adapter fields. Step 2: Create method like to initialize oledb connection string. Step 3: Create a method like below to read records from excel file I name it as ReadFile(). Step 4: Now we reached the file step to invoke all the methods we created.

See More ›
How do I read and write in the same Excel file? ›

Below steps should be followed.
  1. Open the file to Input stream.
  2. Open the same file to an Output Stream.
  3. Read and do the processing.
  4. Write contents to output stream.
  5. Close the read/input stream, close file.
  6. Close output stream, close file.
Mar 6, 2016

Show Me More ›
How do I read and write data from an Excel spreadsheet? ›

To read data from the specified Excel cell, use the Excel - Read Value operation as described below:
  1. Add the Excel - Read Value operation to your keyword test. ...
  2. On the first page of the wizard, specify Excel parameters. ...
  3. On the next page of the wizard, review the parameters you have created and change them if needed.

View More ›

Videos

1. Create Excel file in ASP.NET MVC
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2. How to Read and Import data of Uploaded Excel into SQL Server Database || ASP.NET Core || EF Core
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3. How to write Excel files in C#
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4. Read and Edit MS Excel file and store the EXcel file Data to Access Database using C#.Net Part 1
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5. Load Data from Excel Sheet to Gridview Asp.net C#
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6. Create, Read Excel File using ClosedXML in C# in ASP.NET CORE
(ASP.NET MVC)

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Introduction: My name is Moshe Kshlerin, I am a gleaming, attractive, outstanding, pleasant, delightful, outstanding, famous person who loves writing and wants to share my knowledge and understanding with you.