![]() Organize your files using a familiar rule interface. Hazel can also manage your trash and uninstall your applications. Outside of iOS (where choice is restricted), Node.js is the only standalone JS that matters.Hazel is your personal housekeeper, organizing and cleaning folders based on rules you define. But I’m assuming that means macOS’s JavaScript for Automation, which is crap, dead, and doesn’t support npm, so is functionally useless. The Hazel docs say Hazel supports “JavaScript” as an alternative to AppleScript. It’s a lot like staring into a basilisk, only far less pleasant. TL DR: Use AppleScript to open Excel files in Excel.app and fetch their contents from there, unless that approach is impractical for some reason. docx are somewhat readable too, albeit buggy.) You could try rummaging the web for any sneaky tricks, but it’s probably a waste of time: if there was an official way to do it, I’d expect it to be well known already-you’re far from first to want to read non-Apple files on macOS. (There are public APIs for file formats like RTF and PDF.doc and. (Typical obtuse Apple.) Nor is there anything in the Cocoa APIs and other public macOS frameworks AFAIK. Alas, I’m not aware of a way to hook into the QL machinery programmatically to extract that file data for other uses. One more thought: macOS’s Quick Look appears able too peer directly into Excel files sufficiently well to display a basic preview of their contents. Obviously check whichever libraries you use come with decent user documentation (I know pyopenxl has) with plenty of examples to crib from. ![]() Either way, the script is saved a plain text file with something like #!/usr/bin/env python3 or #!/usr/bin/env node as its first line, and run as a shell script in Hazel. Same basic deal: you’re just writing a JS script instead of a Python script. Or, instead of Python, you could install Node.js and use Excel-reading libraries from npm. (Or, if you’ve already installed Xcode or its command-line tools, you’ll have it with that.) Bit of a pain, Python and Ruby being removed from macOS, although I can understand that decision Apple’s POV. xls) is probably adequate for your needs, although you’ll probably have to install Python 3 from first as Apple no longer includes in in macOS by default. xlsx format only you’d need to rummage on PyPI for another that reads. If you’d prefer to read Excel files directly, a third-party library such as openpyxl (which reads and writes. If Excel isn’t available, you could script Apple’s Numbers.app instead as it can also read Excel files (it won’t support all file features, and its AS support isn’t great, but you should be able to get sheet and cell data okay). ![]() It can be a bit annoying to have AS opening and closing files in Excel while you’re trying to work, but unless AppleScript’s “haunted house” effect is a deal-breaker for you I’d advise going with it as the simplest solution to implement. Using AppleScript means opening the file in Excel.app, pulling out whatever data you want via application commands, then closing the file without saving. Third-party apps and libraries will vary in their level of file compatibility, feature support, but I don’t imagine you’re looking to do anything terribly complex so can likely find something “good enough” if you don’t want to involve Excel.app. Naturally, Microsoft Excel reads and writes both file formats like a pro. I can tell you for free: Both Excel file formats are hideously complex and unfriendly.xls (legacy format) is binary data.xlsx is a zipfile containing several XML documents, which may sound like an improvement alas, the XML data structure is just as baroque and brittle as the binary format, just with lots of tags in it. What data are you looking to get from that file? Names of worksheets? Contents of cells? Metadata? Your requirements are really vague, other than reading and. I don’t know Hazel but from what you write it doesn’t sound like your need is Hazel-specific.
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