Chipping in dnGrep. Allows to grep inside XLSX and Word files. http://dngrep.github.io/. - Source: Hacker News / 3 months ago

You can try Recoll (https://www.lesbonscomptes.com/recoll/pages/index-recoll.html - instant result when searching, but needs indexing first and you might want to donate a little for windows version) or dnGrep (https://dngrep.github.io/ - slower but free and do not need much setup). Source: over 1 year ago

DnGrep - TL;DR : grep with less headaches, a gui, and less features. Source: over 1 year ago

DnGrep is a Windows tool that allows you to search text, Word, Excel, PDF and archive files using text, regular expression, XPath and phonetic queries. Features include search/replace, whole-file preview, right-click search in File Explorer and more. Kindly suggested by majkinetor. Source: over 2 years ago

- dnGrep – Powerful search for Windows - https://dngrep.github.io/. Source: over 2 years ago

If you really want to poke around in the binary, you can use a decompiler like IDA, Ghidra, or Binary Ninja's free version. Source: 9 months ago

Still $$$ for crippled functionality. As an alternative, https://binary.ninja is gaining traction at work. - Source: Hacker News / 12 months ago

As I said, a regular text editor won’t do for reading a binary file, so I needed to choose a disassembler to break the challenge binaries out into their basic blocks. I chose to use Binary Ninja because it has a very easy-to-use Python API, and it’s hobbyist-level cheap (for comparison, the industry-standard disassembler is IDA Pro, which they will sell to you for roughly an arm, and continue to pick off your... - Source: dev.to / over 3 years ago

It’s an awesome reverse engineering tool (https://binary.ninja). Has really nice api support so you can basically automate anything and make plugins for custom architectures and stuff like that. Source: almost 2 years ago

It's basically the opposite of https://godbolt.org/ -- put in binary, get out decompilation amongst many decompilers. It's open source (though you need a Binary Ninja and Hex-Rays license to run internally -- you'll want to check with the respective companies to make sure your particular license is acceptable for use even internally first!). Source: almost 2 years ago