Common Microsoft Excel Errors

The first thing to note when looking at this question is that sometimes ‘Excel’ (and other programs within Microsoft Office, such as ‘Word’) will show error messages that are simply not true!
For example, it is not uncommon to see a message that says something like ‘“There isn’t enough memory or disk space to open excel” when you first try to open the program, which is generally going to mean that it will not, in fact, open.
Now, whilst this may, in an extreme case, possibly be true of a very old PC with very limited memory capacity, it is highly unlikely to be the case if your PC is less than five years old, and running a reasonably current version of Windows O/S (e.g. XP) and Microsoft Office.
In this situation, your machine certainly does have enough memory and disk space, but the chances are that another program is using them! In other words, Excel is running into a conflict with another program, and the standard Office error reporting system is giving you the answer that is nearest to the truth!
Furthermore, ‘Excel’ has pretty much been the de facto ‘King’ of the spreadsheet world for over ten years now, and so, there are hundreds, if not thousands of after-market programs and systems that you can use to ‘tweak’ or ‘modify’ the original program.
Whilst this can lead to vastly expanded functionality and increased flexibility, it almost certainly increases the potential for serious errors to occur in this core component of the Microsoft Office system.
It is thus remarkably easy to create a set of circumstances where ‘Excel’ program errors become almost inevitable.
Without knowing it, of course, every time you download or buy a new software program, you introduce an ‘interloper’ onto your machine that may (or may not) disagree with any or all of the Microsoft Office programs, and ‘Excel’ often seems to be especially vulnerable to such errors.