Making all 7 basic logic gates in Excel is not very difficult. If you understand the functions in Excel, then this project would be fairly simple, if you don't, no worries it won't take long to get used to.
Here's an interesting and simple technique for simulating these circuits on a computer using a spreadsheet program. It doesn’t have to be an expensive or powerful spreadsheet program. For the examples that follow, I'll use Excel. Figure 1 shows the basic idea.
The logic diagram was created in a spreadsheet tool we have developed that lets you paste symbols from a symbol set onto a grid created by the row height and column width settings in Excel.