You can change the date & time format in Google Sheets & Excel Online using this guide. Use different date & time formats in spreadsheets.

When you type a seven-or-ten-digit phone number into an Excel cell that uses the phone number format, Excel will automatically change the way the number looks so that it appears as a phone number ...

Open the Excel 2010 file that you want to make format changes to. Select the top-left cell in the range of cells that you want to change to the accounting format.

When you need to format text in multiple ways in a single cell in Microsoft Excel, then this guide shows you how to do it the easy way.

How to Change a Cell's Number Format to Currency or Accounting First, select the cells, rows, or columns containing the financial values.

However, if you paste a differently formatted date, Excel accepts the source formatting. To further complicate the situation, Excel changes the format of the target cell to that of the pasted value!

Thanks to the linked cell property in Microsoft Excel, it's super easy to use the selected value as a condition in a macro or conditional formatting rule.