There is no shortage of note-taking and PKM software out there. Like many, I've experimented with endless tools to build an effective system to manage ever-growing information. Surprisingly, the answer to my personal knowledge management needs wasn't a cutting-edge application but a familiar workhorse: Microsoft Excel. It may seem unconventional at first, but hear me out.

This isn't a guide to pivot tables or complex formulas but rather a close look into how and why I have embraced this spreadsheet tool as my central hub for capturing, connecting, and leveraging the information effectively.

Why do I use Excel as a PKM system?

Using Excel as a Personal Knowledge Management (PKM) tool might seem odd, but it offers several compelling advantages. First is familiarity and accessibility. Most people already have Microsoft Excel installed on their computers and have a basic understanding of how it works. Unlike new-age tools (looking at you, Capacities and Logseq), it reduces the learning curve and helps you get started in no time.

Excel also allows for complete customization of my data structure. I can decide the columns, the data types, and how information is organized. It perfectly matches my specific needs and the types of knowledge I manage. As my knowledge base evolves, I can add, remove, or modify columns and structures without any limitations.

Another major advantage is simplicity. Excel has a straightforward approach to data organization. I can focus on the core elements of capturing, organizing, and retrieving information without being distracted by unnecessary add-ons.

How to use Microsoft Excel as a PKM hub?

Let’s go over the effective ways of setting up, using, and maintaining an Excel-based PKM.

Define knowledge domains

Before you start, it’s important to define your knowledge domain first. So that you have clarity on how to organize your knowledge within workbooks.

Let’s say you are a software developer who is passionate about learning new programming languages and contributing to open-source projects. Now, your knowledge domain might include programming languages, software development concepts, open-source projects, development tools, career development, contacts, and personal projects.

Similarly, if you are a college student, your knowledge landscape may include Indian history, World history, Environmental Issues, Books to read, College contacts, Local history of New York, and NGO contacts. The possibilities are endless here.

Create core worksheets

Now, it’s time to create your core worksheets based on knowledge domains. Let’s continue with the example above. As a software developer, you can create the following worksheets with specific purposes.

• Python Learning: For notes, code snippets, and resources related to Python.
• JavaScript Notes: Similar to Python, but for JavaScript-related information.
• Algorithms & Data Structures: For fundamental computer science concepts.
• Open-Source Contributions: To track projects, issues, and contributions.
• Dev Tools and Tech: For information on various software development tools.
• Career Resources: For articles, courses, and notes on career growth.
• Personal Projects Log: To track the progress and details of his own coding projects.
• Developer Contacts: For information about other developers.

In the Python Learning spreadsheet, you can add relevant columns like Topic/Concepts, Date Learned, Source, Explanation, Keywords, Time spent, and Difficulty Level (1-5). You can even add a Status column (Not Started, Learning, Practiced, Mastered) to track progress with each concept.

Leverage core Excel features

You can leverage Excel's core functions in your Personal Knowledge Management (PKM) system in several powerful ways to enhance your organization. For example, you can sort ‘History – Ancient’ worksheet by the ‘Date’ column to review events in chronological order. Similarly, you can filter the Source column to see all notes she took during a particular professor's lectures or from a specific book.

You can also leverage hyperlinks to create clickable links to web addresses, files on your computer, or specific locations within the same or another Excel sheet.

With Excel’s data validation, you can create a dropdown list of common tags like Political History, Social Structure, Water Pollution, and more to make filtering and searching more effective. By strategically employing these core Excel functions, you can transform a collection of notes and resources into a dynamic and interconnected PKM system.

Make your knowledge accessible and share it

The primary goal of a PKM is for you to easily access and utilize the information. It’s important to create an intuitive worksheet structure with clear column headers, strategic hyperlinking, and visual cues with conditional formatting. Also, don't underestimate the basic Find function. It allows you to quickly search for specific keywords across the entire active worksheet.

While a PKM is often a personal endeavor, there might be situations where you want to share specific parts or the entire workbook with others. You can create a dedicated ReadMe sheet, generate a sharing link, enter a password if required, and even add an expiry date. The latter is quite useful for sharing temporary access to information, for example, sharing project-related data with a collaborator for a specific duration.

From spreadsheets to knowledge vault

My journey with Excel as a personal knowledge base is an ongoing evolution. It’s one of the few tools that allow me to connect information in ways that make sense to me. Of course, Excel won’t be the crowd-favorite or a conventional choice, but it’s a fun (and, dare I say, effective) way to extend the functionality of your spreadsheets and workbooks.

I hope this glimpse into my system has sparked some ideas and encouraged you to consider Excel for better knowledge, organization, and understanding. Aside from a PKM system, here are other creative ways to use Excel beyond number crunching.