Use OpenXml in javascript to read from excel and write to excel - javascript

I want to read excel file then validate rows & finally create an excel of incorrect rows. I want to do all this using JavaScript. This should support latest version of excel as well. What will be the best way to do this?

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Converting XML SpreadSheet to XLSX using Javascript

I need to convert a XML SpreadSheet to a native Excel file (XLSX), without using MSOffice.
In particular I need to make this conversion using Javascript.
I'm searching for in "StackOverflow" web page and also in google and other portals, but I don't find nothing about it.
The XML SpreadSheet sample file is like this:
enter image description here
On the other hand, I've discovered the "excelcnv.exe" command for conversion between formats, included in MSOffice Excel installation, but just I got to convert from XLS to XLSX, but not from XML SpreadSheet to XLSX...In fact I haven't found any documentation about this "excelcnv.exe" command so I don't know if it is possible this conversion.
Also I've found about some javascript libraries like oxml.js or XLSX but I think this libraries allow create a native excel file from scratch, not convert from input files in XML SpreadSheet format.
Maybe anybody could know how do this using javascript or some javascript library.
Any help will be very welcome :)
Thanks in advance,
You need to change the file extension. From xml to xls.
Then excelcnv will convert correctly.
excelcnv.exe -oice <INPUT> <OUPUT>

How can I implement an Excel custom format with JavaScript?

I'm trying to write JavaScript code that acts like Excel custom formatting: taking a format and applying it to a string/number/etc in a HTML table.
Is there some code or library that'll let me do that? I'm not trying to access Excel files, just copy the custom format functionality.
If you are using nodejs then please use a framwork that can handle the excel operations. With that you can easily manipulate Excel files. There is one here try it:
https://www.npmjs.com/package/exceljs

Javascript (Angular Js) exporting Json as excel (with letters in fonts)

I am trying to implement to Json to Excel exporting in javascript. I am using angular js. I was to able to generate Json to CSV but i cant not retain font(bold) and macros in CSV (because its csv).
Is there any opensource in the market for Json to Excel conversion by retaining font colours for the text.
There is an interesting project on github called Excel Builder (.js)
that offers a client-side way of downloading Excel xlsx files and includes options for formatting the Excel spreadsheet.
https://github.com/stephenliberty/excel-builder.js
You may encounter both browser and Excel compatibility issues using this library, but under the right conditions, it may be quite useful.
The demos on github project with less Excel options but less worries about Excel compatibility issues can be found here: ExcellentExport.js
https://github.com/jmaister/excellentexport
The demos seem to hold some promise.
http://excelbuilderjs.com/index.html
If you are using AngularJS, there is ng-csv:
a "Simple directive that turns arrays and objects into downloadable CSV files".

write to a specific cell in excel from nodejs

Does anyone know a way to write to a specific cell in to an existing excel file using nodejs.
Reading specific cells from an existing excel file is not a problem for me.
I have tried exceljs and kexcel without any success.

Javascript Searching an Excel file

I was wondering if it would be possible to use Javascript to search through a column of an excel spreadsheet for a value that matches what a user types into a textbox. If a match is found I'd like to retrieve the row number the match was found on and put that number into a variable. I'm making a small database and would like this site to independent of using a database program like SQL if possible.
Is it possible to accomplish this with javascript? If javascript is incapable of this is there any other scripting language that can handle this task?
Thanks
You can use JavaScript with older versions of Excel. Here's an example: http://support.microsoft.com/kb/234774
You can use Windows Script Host to run in a shell other than a browser:
http://msdn.microsoft.com/en-us/library/9bbdkx3k(v=vs.84).aspx
Here's the Excel 2003 API reference:
http://msdn.microsoft.com/en-us/library/aa272268%28v=office.11%29.aspx
Scripting Microsoft Excel in JavaScript is a new thing, only Office 2013 supports it. Here is the doc. Here is a useful intro.
For older Office versions, use VBA macros, or write an application in C# which uses Microsoft.Interop, as #PortlandRunner suggested.
UPDATE I forgot to mention that C# is not the only technique to work with Excel files from external code. #KevinCollins is right, there is JScript and VBScript too. For the sake of completeness, I would like to add PowerShell to the list, you can also work with Excel files using PowerShell.

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