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FAQ

How do I batch convert .csv to .xls/xlsx?
Hard to give an answer for best method since Im not sure exactly what your use-case is Do a Google search for batch convert csv to xls There are applications that will do this (usually paid). Also Excel add-ons that will do this (again usually paid). There are also some free online converters (again do a Google search for convert csv to xls) Another option I stumbled across is to use VBA (Visual Basic for applications) which is an option built into excel. This site has a script you can copy How to batch convert multiple CSV files to XLS(X) files in Excel? s Something to take into consideration converting from CSV to XLS(x) you man run into formatting issues or things like loss of leading zeroes if u just go through a quick conversion. If this isn a concern some of the free online batch converters will probably work for you. If you do have formatting that you need preserved you may need a more robust paid solution. In short batch conversion from .csv to .xls is a pretty standard practice and there are plenty of applications that have this as a built in feature for mass upload. If you have tons of csv files that you need to convert are doing it on a regular basis or for business look into a paid solution tailored for your use-case. I hope that gets you started in the right direction. Sorry I don have a more concrete answer but there is a solution for you; this is a pretty standard process.
Is it possible to extract the information from, for example a PDF or JPG into an Excel file just by uploading?
Excel can open any file but that does not mean you will get meaningful data from that exercise. If you know the file format specifications you can use VBA to parse the data. Note that you will never recover the in a jpg this way. Jpgs with are pictures of . This is the idea behind Captcha. It takes an eyeball to read the writing. I once wrote the VBA to open a MacPaint file and used the cells in the place of pixels. It worked but MacPaint was B&W graphics.
Is there any free alternative to PDF Element Pro?
Wondershare PDFelement is a professional PDF tool that enables users to edit OCR s and graphics with original presentation layout fonts and & Combine PDFn- Combine different format files into a new Services & WiFi Transfern- Import files from cloud storage including DropboxGoogle DriveOneDriveBox or via WiFi wireless to PDFn- Quickly snap a photo of anything into a PDF and share with Managementn- Merge extract reorder rotate and delete PDF pages to gain better reading File Managementn- Embedded with special folders to manage PDF effortlessly and customize your own PDF - Insert picture of your hand written signature or draw pixel perfect signature on the touch Sharingn- Support printing and emailing the edited PDF directly. Wondershare PDFelement is listed in Wondershare Programs s
Are there any programs that support OCR for Arabic texts?
Yes the Cisdem PDF Converter OCR s a professional tool to convert native scanned and locked PDFs into 16 formats. It maintains the original file quality after OCR processing and supports more than 5 languages. with 3 steps you can easily perform OCR on Arabic files import by drag and drop batch processing is supported click Convert to start the process. ordered-list
How do I convert .xls file to .xlsx using c# and without Microsoft office installed?
Microsoft Office when installs in the system a set of dll (dynamic library) file is added in the system global assembly cache. For Microsoft Excel this assembly is . To convert a file extension programatically you don need any such dll to be installed in your machine. Now if your question is to convert the extension only then it is quite simple and can be done through C# without Microsoft Excel installed in yourputer and the file can be also opened as .xls is Microsoft Excel 97323patible workbook and .xlsx refer to the latest excel workbook format but the changed file cannot be opened unless all the data is read and converted to the latest format. C# Code for conversion of file extension is as follows- class Program code code tstatic void Main(string args) code code (File Extension Conversion From .xls to .xlsx); code try code code (Enter theplete file path); code string filePath = (); code if ((.xls)) code code (filePath (filePath .xlsx)); code (File Extension Updated To .xlsx); code code else code code (File not having .xls extension..); code code code catch (Exception) code code (File Extension Cannot Be again...); code code code code If you want to read all the values from the .xls file and then convert it to .xlsx then it is not possible without Microsoft Office installed in your system. EDIT 1 Functionality to convert all the values to the latest .xlsx version class Conversion code code static void Main(string args) code code (File Extension Conversion From .xls to .xlsx); code try code code (Enter theplete file path); code string filePath = (); code (Enter directory path to save); code string strFilePath = (); code (Enter file name to save); code string strFileName = (); code if ((.xls)) code code strFileName = GetFileDetails(strFilePath strFileName); code DataTable newExcelFormat = ReadExcelData(filePath); code var newFile = (strFileName); code using (ExcelPackage pck = new ExcelPackage(newFile)) code code ExcelWorksheet ws = (Name of Worksheet); code (newExcelFormat ); code (); code code (File Extension Updated To .xlsx); code code code else code code (File not having .xls change aborted...); code code code catch (Exception) code code (File Extension Cannot Be file is & try again...); code code code public static DataTable ReadExcelData(string filePath) code code DataTable dtexcel = new DataTable(); code bool hasHeaders = ; code string HDR = hasHeaders ? Yes No; code string strConn; code strConn = Provider=.;Data Source= + filePath + ;Extended Properties=Excel 8.;HDR= + HDR + ;IMEX=; code OleDbConnection conn = new OleDbConnection(strConn); code (); code DataTable schemaTable = ( new object null null null TABLE ); code DataRow schemaRow = ; code string sheet = (); code if (!(_)) code code string query = SELECT * FROM + sheet + ; code OleDbDataAdapter daexcel = new OleDbDataAdapter(query conn); code = ; code (dtexcel); code code code (); code return dtexcel; code code code private static string GetFileDetails(string strFilePath string strFileName) code code strFilePath = (strFilePath strFileName + .xlsx); code if ((strFilePath)) code code (strFilePath); code code return strFilePath; code code code I have EPPlus-Create advanced Excel spreadsheets on the server Framework dll to achieve the above functionality and the system does not need to have microsoft office installed in it. Thanks for A2AHope the answer helps-)
Where can I get data that is stored in different sources, for example Excel, SQL server, Oracle, etc? I need to build a data warehouse for a university project.
You get data from your different sources thats why they are called sources. There are a few tricks You must get the data out of any proprietary format. So dont attempt to parse an XLS file extract it out to a CSV file (when saving the spreadsheet request that you save it in the CSV format). CSV is ama-separated-view format each field is and separated by ama. This is much more easily parsed by a database loading program like bcp or sql*loader. Use the data loading tools for the database mentioned to load the data into a tables designed to capture this data your staging tables. I am assuming that u do not have access to ETL (Extract Transform Load) tool otherwise you would use that to load staging tables. Finally you will need to design a few reports over your warehouse to show the new design. ordered-list Sounds like a fun project enjoy!!!
Is there a way to find out if a given email address exists?
Here some methods email validation services use to make sure an email address is a safe send or not Spam trap removal identification and removal of email addresses that have a history of being marked as senders of spam. Checking for toxic domains identifying domains that are known for spam and bot behaviour. Detect bounces for emails of which validity is hard to confirm undetectable emails are sent to see if they bounce or not. MTA validation An MTA or Mail Transport Agent is the application that transfers email from one recipient to the other. Email validation tools can check whether the MTA of a particular email address has valid records or not. Email deduplication removing duplicates from your list. Syntax elimination removal of email addresses with invalidbinations. One way to evaluate what the best email validation service is is to check how many and which specific techniques they use to get the job done. However not all services list all of the techniques they use and sadly there also some services that state using particular techniques when in reality they don. The best way to figure out which email validation service is the best is to test it. Looking all over the internet youll find multiple email validation services claiming that they are market leader that they have won awards and that they have the highest accuracy in the industry. In 9% of the cases this is marketers making smoke trying to get you to use their service. The best way to figure out which tool you should use is to test it. You can do this two ways Take a sample that is representative of the email lists you would regularly send emails to. It should be relatively small so you don have to pay a ton to just test it but it should also not be too small so your results can still be fairly significant. Your first test is to check which service marked the most emails as to bounce. In my experience the service that marks more emails as bad is the more accurate one. But not necessarily. To really know which one is best send two separate email campaigns to both verified lists then check for which campaign you have the most bounces. The service that got you the list with the fewest bounces wins. The problem with the first method is that you have to send email campaigns to people for the sake of testing an email validation service. You can also just use a different service every time you clean your email lists and keep track of the verification accuracy. The problem here is that you won beparing results for the same email list. And it will take some time for you to figure out what the service with highest accuracy is. If you don want to spend effort and time testing here my rmendation. In my days as a B2B growth marketer working for multiplepanies I either ran tests like the aforementioned ones or have seen the insights that resulted from it. From those experiences today VoilaNorbert s is my go-to service if I need emails verified. Accuracy is among the highest the pricing is fair you can easily plug it into other processes and software using their API. Plus they have a pay-as-you-go pricing model you upload your list pay for the amount and get a cleaned list in return. No BS with subscriptions or recurring payments. Which I think is smartly done since email verification is not like a monthly need. You do it like once every few months to weed out email addresses that have gone bad.