the SUBSTITUTE function
thesaurus
If you mean Excel, or similar spreadsheets, you can use the sum() function.
If you mean Excel, or similar spreadsheets, you can use the sum() function.
This feature is called Excel Slicers. See related links.
The Sort feature.
You can use this feature to find and replace any string (text and/or numbers) or portion of a string in your spreadsheet. However, exercise a little caution as you can potentially alter something you didn't intend to! See the excel help file for further information.
There is no step function in Excel. However, you can use excel to create a Step Function Chart. See related links for a video to explain the process.
Bullets are not a feature of Excel. They are found in other applications. They have no use in Excel.
The autosum symbol is Sigma, a letter in the greek alphabet.
Function
Validation is the feature that can limit what is entered into cells in Excel.
There is no function of that name in Excel. There is a function called VLOOKUP which stands for Vertical Lookup, and is probably what you mean.