Points of Interest. The XLSX format is just a bunch of XML files that are zipped together. This XML files follow the OpenXML convention. The library works by defining a model of Excel objects (sheets, rows, cells, styles.) that are SET in memory, when the generate method is called, the necessary XML nodes for the Excel obejcts are created.
![Javascript Javascript](/uploads/1/2/5/6/125644402/660260375.png)
![Javascript Javascript](/uploads/1/2/5/6/125644402/535657498.png)
Old question, but I should note that the general task of parsing XLS files from javascript is tedious and difficult but not impossible.I have basic parsers implemented in pure JS:. (XLS files, what you wanted). (XLSX/XLSM/XLSB files)Both pages are HTML5 File API-driven XLS/XLSX parsers (you can drag-drop your file and it will print out the data in the cells in a comma-separated list). You can also generate JSON objects (assuming the first row is a header row).The test suite shows a version that uses XHR to get and parse files.
I'm looking for a library to generate excel files. It is not just about outputting csv, or some rows, but about a library which would also make easier to do some basic formatting like header rows, changing colors and font size.There are many excel generation libraries for the server, but I cannot find anything more than some examples on how to write it myself.
There is a library going in this direction:But it's more for generating excel based on tables in html. And in addition it doesn't cover more advanced topics like those I mentioned.