What is a .12M file?
A .12M file is a special kind of file that works like a digital spreadsheet. It was made by a program called Lotus 1-2-3, which is part of something bigger named IBM Lotus SmartSuite. Think of it like a pre-made template for a spreadsheet. This means it has a layout ready for you to just start typing in your information, like numbers and data, to help you with things such as planning your money, making predictions about future earnings, or setting up budgets. These .12M files are pretty smart because they already have formulas (which are like math problems that the computer solves for you), how the information should look (formatting), and the parts of the spreadsheet that will be printed out.
To open a .12M file, you would have needed the IBM Lotus 1-2-3 program. However, it's important to know that this program isn't available anymore because it was stopped in 2013. Lotus 1-2-3 was a big deal back in the day, starting in the 1980s and into the early 1990s. It was like a Swiss Army knife for data because it could do three big things: work with spreadsheets, make charts and graphs, and handle simple database tasks. But as time went on, another program called Microsoft Excel became more popular, and Lotus 1-2-3 wasn't used as much.
Since Lotus 1-2-3 is discontinued, if you find a .12M file and need to open it, you might have to look for special software that can read or convert these types of files into a format that modern programs like Excel can understand.
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