I am trying to write a small web tool which takes an Excel file, parses the contents and then compares the data with another dataset. Can this be easily done in JavaScript? Is there a JavaScript library which does this?
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I am trying to write a small web tool which takes an Excel file, parses the contents and then compares the data with another dataset. Can this be easily done in JavaScript? Is there a JavaScript library which does this?
How would you load a file into JavaScript in the first place?
In addition, Excel is a proprietary format and complex enough that server side libraries with years in development (such as Apache POI) haven’t yet managed to correctly 100% reverse engineer these Microsoft formats.
So I think that the answer is that you can’t.
Update: That is in pure JavaScript.
Update 2: It is now possible to load files in JavaScript: https://developer.mozilla.org/en-US/docs/DOM/FileReader