In the project you are working on, you may need to process multiple Excel output files, including csv, xls, and xlsx files, so I want to convert the last two methods to the csv format and parse them together. so I found the following two classes, both of which are official apache examples. source link:
XLS2CSV: html/api/org/apache/poi/hssf/eventusermodel/examples/XLS2CSVmra.java.html "> http://www.docjar.com/html/api/org/apache/poi/hssf/eventusermode
Nonsense less say directly on the code, remember is poi3.8 version AH. The method entry is unique, automatically determines the format, uses the interface reference, and automatically chooses the execution method.Method Entry:public static arraylistarraylistWorkbook wb = null;try {WB = Get2003workbook (new FileInputStream (FileName));if (WB = = null) {WB = Get2007workbook (new FileInputStream (FileName));if (WB = = null) {throw new RuntimeException ("Unrecognized format, unexpected Excel type ("
(Exception e) {E.printstacktrace ();}}@SuppressWarnings ("Static-access")private static String GetValue (Xssfcell Hssfcell) {if (hssfcell.getcelltype () = = Hssfcell.cell_type_boolean) {Returns the value of a Boolean typeReturn string.valueof (Hssfcell.getbooleancellvalue ());} else if (hssfcell.getcelltype () = = Hssfcell.cell_type_numeric) {Hssfcell.setcelltype (hssfcell.cell_type_string);Returns the value of a numeric typereturn Hssfcell.getstringcellvalue ();}else {Returns the value of a st
1: First Import all packages under the Poi-3.12-beta1 sibling directory, and then import all the packages under the Ooxml-lib folder2:New tocsv (); Tcsv.convertexceltocsv ("c:\\users\\administrator\\desktop\\bigdata\\simpheno.xlsx", "C:\\ Users\\administrator\\desktop\\bigdata ");These two groups are sufficient to generate a CSV file that can be read correctly in the generated CSV file after testing. It doesn't have to be as complicated as many tutorials on the web.Java PO
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Article, where the information may have evolved or changed.
There is a lot of information about exporting Excel online, most of which is creating a new. xlsx file (the. xls library does not provide write functionality). But in this case, the export of Excel is often ugly, the other is to open a template, filled with things, often the first line fixed.
First method (directly created)
package mainimport ( "github.com/ Tea
Using Python to operate xlsx files in Excel,
Preface
Previously, xlrd/xlwt was used for reading and writing excel files. However, the two databases only process the xls Format better and the format ending with xlsx won't work. Because all of you are using the latest version of office, and the excel format is xlsx, it is not appropriate to continue to use xlrd/xlw
Installation EnvironmentMy environment is Mac + firefox42 + Selenium 2.9.1Download link for Firefox history version: http://ftp.mozilla.org/pub/firefox/releases/This experiment requires downloading a large number of jar packages, as shown inThe students who need to download the link can private me--Experimental process
Open Selenium, record a series of actions, my operation is to visit https://psych.liebes.top/st this URL, enter your own account and password, and then click Out of the G
1. Install Java Program (official website Win7 64-bit system Java installer and URL http://www.java.com/zh_CN/download/manual.jsp), select Windows 64-bit offline install to r directory2. Enter in R:Install.packages ("rjava") install.packages ("xlsx") )Install these two packages, you will be prompted to have a package, "Xlsxjars" This package is usually installed in this process automatically, if not installed, you can follow the above command, install
ArcGIS does not open Excel (*.xlsx) filesThis issue also exists in the software development process, which is required when *.xlsx cannot be read.1.ArcGIS Error:Failed to connect to Ddatabase. An underlying database error occured. No registration class2. Reason:Missing the Office System driver (AccessDatabaseEngine.exe)3. Solution:Need to install the Office System driver (AccessDatabaseEngine.exe), download
Sub Test ()Dim WB as Workbook, MPath as String, F as StringApplication.DisplayAlerts = Falseapplication.screenupdating = FalseApplication.calculation = xlcalculationmanualIf workbooks.count > 1 then MsgBox "Close the other workbooks and try again!" ": Exit SubMsgBox "Select the folder where the. xlsx file is located! "With Application.filedialog (msoFileDialogFolderPicker). Show. AllowMultiSelect = FalseIf. Selecteditems.count = 0 Then MsgBox "You gav
Recent projects need to read encrypted Excel, there are two types of XLS and xlsx, for the encryption and decryption Apache official website has a brief descriptionRequired jar Package Poi-3.9,jar Poi-ooxml-3.9.jar Poi-ooxml-schemas-3.9.jar Xmlbeans-2.3.0.jar Dom4j-1.6.1.jarNote that the 3 Jar version number of the POI should correspond, or there will be some problems.On the Code ~ /** * Excel Import */@SuppressWarnings ("Unchecked") @RequestMappin
When maintaining the website a few days ago, if the file type of the file link on the website is docx, XLSX, and other office07 files, click the link in the IE browser, and Garbled text is displayed. The doc and XLS files on the server are normal. Chrome, FF and other browsers are also displayed normally.
In my local test, opening the local docs and XLSX files through the IE link can also be displayed norm
This should be an all-in-one example, and more complex functions can be expanded on this basis. This example is based on the Apache POI Class Library, and the associated jar package is not listed. This kind of library is very general, the Internet is very easy to find.1. Write Excel that does not contain cell merges/** * Excel export to output stream * who is responsible for closing the output stream * @param os output stream * @param excelextname Excel file extension, XLS and
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