convert xls to xlsx without excel

System.Data.DataTable getdatafromexcelbycom (bool HasTitle, string fileName) {//openfiledialog openFile = new OpenFileDialog (); Openfile.filter = "Excel (*.xlsx) |*.xlsx| Excel (*.xls) |*.xls "; O

PDF format, we just need to convert the specific one, and of course, the same component I'm using can do the same. Below I will describe separately how to use C #, VB. NET programming way to convert Excel to PDF and how to convert a specific worksheet in Excel into a PDF.In

Sometimes we have PDF format, but in the PDF we can not do like Excel, so we need to convert the PDF format to Excel format to operate, below I am talking about how to convert PDF format to excel format. ▲▲ Note: As with PDF to Word, if the PDF file is encrypted, can not be

New ways to export data to Excel: Convert a View or partial view to HTML and return directly to the Fileresult export Excel method Summary:There are many ways in which MVC exports data to Excel, which is common:1. Use the Excel COM component to dynamically generate the

;This. dgvShow. Size = new System. Drawing. Size (885,600 );This. dgvShow. TabIndex = 0;//// BtnSelect//This. btnSelect. Location = new System. Drawing. Point (202,611 );This. btnSelect. Name = "btnSelect ";This. btnSelect. Size = new System. Drawing. Size (148, 23 );This. btnSelect. TabIndex = 1;This. btnSelect. Text = "select excel file ";This. btnSelect. UseVisualStyleBackColor = true;This. btnSelect. Click + = new System. EventHandler (this. btnSe

blogger's programming level is, but the addition of an open source project: Https://github.com/ExcelDataReader/ExcelDataReader This library does not use Office components, Instead of reading the file directly, parsing its contents, bypassing the complex component mechanism, the data conversion process, so quickly. This is mainly the benefit of the OPENXML standard.By the way, the Excel xlsx file is actuall

1. Preface During project development, you need to read the Excel document, convert the content in the Excel document into an XML document, and save it in a local file. For example, to read an Excel file in the following format: PassCodeThe following code segment in the instance can run empty rows in

View code Using system; using system. collections. generic; using system. componentmodel; using system. data; using system. drawing; using system. LINQ; using system. text; using system. windows. forms; using Excel = Microsoft. office. interOP. excel; using system. diagnostics; namespace Excel convert image {public pa

The school hopes to submit the email addresses of alumni collected in the school transcript in the form of an Excel file to invite alumni to attend the anniversary celebration in a group. The school transcript database is in the MDB format of access, which contains multiple tables. The alumni address is in a separate "Student" table. This is actually to convert an Access Table to an

Easy to do without code, refer to Http://jingyan.baidu.com/article/fc07f9891cb56412ffe5199a.html1.excel turn MySQL　　A. First confirm what your database is encoded, take utf-8 as an example,B. You first open the Excel file, the file is listed as standard,　　　　　Then save and select Save As. csv file.C. Then open the. csv file with a text editor (Sublime) and Save as Utf-8 csv (file->set file Encoding to UTF-8)

Article 3 C # convert HTML into Excel directly, When writing a project the other day, the customer asked to display the information in an HTML table, and then export the information in Excel. If you want to perform operations in the background, it is estimated that the process is dead. However, after careful consideration, Ex