Office software from the earliest version of the DOS, has been the world's most users of the Office software, the function is also increasingly powerful. At present, some people in the market are using 2007 and 2010, while others remain on 2003. You know that Office 2003 through Office 2007 is a big change, and interface operations vary greatly, even in the suffix format. This makes it impossible for users who use Office 2007 or above and those who use Office 2003 to interoperate, because the fi
Method One, on-line conversion method
If you want to convert xlsx to XLS, one of the best way is to find a site with this function, now we use most of the most stable site should be considered NetEase online conversion, click here to enter, the specific steps are as follows:
First, open the Web site, enter the conversion page, and then click the "Browse" button
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/example
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
Recently there was a request for one of my projects to parse Excel files (with xls/xlsx extensions) in the browser (using JavaScript of course). So I looked online and found these 2 useful libraries:
Js-xls
Js-xlsx
Let's see how they work.CompatibilitySupport for reading file formats
Excel 20
Processing of Excel import errors (xls, XLSX)
Recently, the following problems were encountered during the process of creating a small function to import an Excel file to the datagriview:
The link string of The Link Excel is written in this way.
String strconnection = "provider = Microsoft. Jet. oledb.4.0; Data Source =" + strfilename + "; extended properties = Excel 8.0 ";
In this way, everything goes smoo
Java_poi ms-excel2003 (extension. xls) upgrade to ms-excel2007 and later (extension. xlsx) Technical Process OverviewEric.zhang (Nickname: No. 7th of the Traveler)Date: November 11, 2015A. PrefacePOI technology is the Apache Foundation's Open Source Library, which provides APIs to Java programs to read and write to Microsoft Office format archives. Detailed explanation see Baidu Encyclopedia http://baike.b
A few days ago in the project, there are imported Excel files, before there is a written ready-made import method, but the customer's request is able to import. xlsx files, but our method can only import. xls files. On the Internet to find some methods, no error in eclipse, but compile the error is not found files, and then download the latest jar from the POI website (3.13), import projects, again compiled
:{//determine if the cell is a date format if(dateutil.iscelldateformatted (cell)) {//Convert to date format Yyyy-mm-ddCellvalue =Cell.getdatecellvalue (); }Else{ //DigitalCellvalue =string.valueof (Cell.getnumericcellvalue ()); } Break; } Casecell.cell_type_string:{Cellvalue=Cell.getrichstringcellvalue (). getString (); Break; } default: Cellvalue= ""; } }Else{Cellvalue=
(),
fileencoding = "", encoding = "Unknown", text, Skipnul = FALSE)
2. R Read CSV file
Using R to read a CSV file is similar to reading a TXT file, using the Read.csv () method, where the use of the parameters is mostly the same.
Read.csv ("/home/slave/test.csv", Header=t, Na.strings=c ("NA"))
When reading the CSV file, the separator is "," (this sentence is basically nonsense, you know); The specific parameter settings can be referenced as follows:
Read.csv (file, Header = true,
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 ("
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 */@
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