Was this one of the many Excel accounting templates? Or was it a "raw" Excel spreadsheet with your own formulae, etc.?
No template, just my calculations from pasted in data.
My sheet started in 2001. I looked at accounting templates and financial statement templates at one point, but a simple list worked well enough. Other things have been added on over the years as my need for certain data has changed. The formulae have been pretty simple, sums, percentages, averages, multiplications or divisions for currency conversions.
I paste data in from online banking now. My bank offers CSV format in addition to formats for several pieces of accounting software.
Since I have Excel, and use it at work for a lot more complicated things than my accounts, there isn't much reason for me to get anything else. Maybe because I am familiar with it, I use it for all sorts of stuff. I have a file for keeping track of all the fabric and sewing supplies I have bought for DIY camping projects. When I need to compare prices and features, or price up and compare places for orders and shipping I use Excel. All my kit is weighed and I have the weighed packing lists for most trips I have made in Excel. I have a sheet all about my belt grinder and belts, recommended speeds for belts, what I have bought and when, grit conversions tables, and pricing. Endless stuff I use it for.
Using Office 365 at work, and somewhere along the line they added the function that you can use excel to create a list of all file names in a given folder, including subfolders. They just keep adding capabilities, and I was using a fraction of what was there, even at work. I recently even tried to get it to do more than I know how by getting ChatGPT to write scripts to do what I want excel to do. A bit hit or miss, but using instructions I had no idea were in there!