One common issue people face is that Excel does not allow them to add a zero at the beginning of a number. This can be extremely frustrating, especially if you’re dealing with a lot of data. There are a few reasons why this might happen.
The first reason is that Excel interprets numbers that begin with zeros as octal numbers. Octal numbers are used in some programming languages, but they are not commonly used in Excel. As a result, if you enter a number that begins with a zero, Excel will remove the zero and display the number accordingly.
The second reason is that Excel saves numbers as floating-point numbers. This means that there is a certain amount of precision that is lost when a number is stored in a cell.
The third reason is that Excel has a limited number of digits that it can store in a cell. If a number is too long, Excel will simply truncate it. This means that any leading zeros will be lost.