Control Spreadsheet Warranty For Free

Protect an Excel file Select File > Info. Select the Protect Workbook box and choose Encrypt with Password. Enter a password in the Password box, and then select OK. Confirm the password in the Reenter Password box, and then select OK.

How to Calculate Years of Service in Excel Using DATEDIF Click the cell where you want the years of service to appear. Type: =DATEDIF( Click the cell containing the start date, then type a comma. Click the cell containing the end date, type a comma, then type: y) Press Enter and the years of service will calculate.

=EDATE(A6,12) We can use the EDATE function to calculate expiration dates by months. EDATE returns the same date and months ahead or before. This will show the expiration dates in column C.

On the worksheet, select just the cells that you want to lock. Bring up the Format Cells popup window again (Ctrl+Shift+F). This time, on the Protection tab, check the Locked box and then click OK. On the Review tab, click Protect Sheet.

You can also press Ctrl+Shift+F or Ctrl+1. In the Format Cells popup, in the Protection tab, uncheck the Locked box and then click OK. This unlocks all the cells on the worksheet when you protect the worksheet.

Type a date in Cell A1 and in cell B1, type the formula =EDATE(4/15/2013,-5). Here, we're specifying the value of the start date entering a date enclosed in quotation marks. You can also just refer to a cell that contains a date value or by using the formula =EDATE(A1,-5)for the same result.

If you need an expiration date at the end month, use the EOMONTH function, which returns the last day of the month, n months in the future or past. An easy way to calculate the 1st day of a month is to use EOMONTH to get the last day of the previous month, then simply add 1 day.