An Excel workbook is an Excel file that can contain multiple, somewhat independent spreadsheets called Excel worksheets. If you see multiple tabs in Excel files, each of those is an Excel worksheet.

Selecting this option allows you to enable all macros in the worksheet temporarily. Click "OK" to close the Trust Center window and return to the main Excel window containing your spreadsheet.

Then in cell B2 enter the formula =INDEX (SheetNames,A2), and then copy and paste the formula down 25 rows. These formulas will return a list of the names of your worksheet tabs in the same order as ...

If you have simple tasks that you need to perform in Excel often, you can actually “teach” Excel to do them for you by recording a macro.