There are a few ways to merge two Excel spreadsheets. The easiest way is to open both spreadsheets and copy and paste the data from one spreadsheet into the other. You can also use the merge feature in Excel. To do this, open one of the spreadsheets and go to the Data tab. In the Data Tools group, click on the Merge and Center button. This will open the Merge Spreadsheet dialog box. Select the second spreadsheet from the list and click the Open button. The data from both spreadsheets will be merged into one spreadsheet.