In the message, on the Options tab, in the Permission group, click Sign Message. In the message, click Options. In the More Options group, click the dialog box launcher in the lower-right corner. Click Security Settings, and then select the Add digital signature to this message check box. Click OK, and then click Close.

Activate Windows using a product key. A product key is a 25-character code, that looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. During installation, you'll be prompted to enter a product key. Or, after installation, to enter the product key, select the Start button, and then select Settings > System > Activation > Update product ...

In File Explorer under View, in the Show/hide group, select the File name extensions check box. Below is a list of common Windows file name extensions and formats. Extension. Format. aac, adt, adts. Windows audio file. accdb. Microsoft Access database file. accde.

The IF function is one of the most popular functions in Excel, and it allows you to make logical comparisons between a value and what you expect. So an IF statement can have two results. The first result is if your comparison is True, the second if your comparison is False. For example, =IF (C2=”Yes”,1,2) says IF (C2 = Yes, then return a 1 ...

即使欄有 100 或 1,000 個數據儲存格，Excel 仍可透過幾個步驟處理。. 方法如下：. 在欄中輸入您要乘以 15% 的數位。. 在空白儲存格中，輸入 15% (或 0.15) 的百分比，然後按 Ctrl-C 複製該數位。. 向下拖曳欄) ，選取單元格 A1：A5 (範圍。. 以滑鼠右鍵按下單元格選取 ...

Sometimes you need to check if a cell is blank, generally because you might not want a formula to display a result without input. In this case we're using IF with the ISBLANK function: =IF (ISBLANK (D2),"Blank","Not Blank") Which says IF (D2 is blank, then return "Blank", otherwise return "Not Blank"). You could just as easily use your own ...

Here are some of the ways you can earn Microsoft Rewards points: Search with Bing *. Search the web through the search box on the taskbar on your Windows 10/11 device. Buy stuff from Microsoft Store online (from your mobile device, on Xbox One, in the Microsoft Store app on your Windows 10/11 or Windows 8.1 device, or via the web). For more ...

通常は、基になるテキスト格納方法の詳細を気にしなくても、テキスト ファイルを共有できます。. ただし、次のような状況でファイルを開いたり保存したりするときにエンコード標準を選択する必要がある場合があります。. エンコード標準は、Microsoft Word ...

Argument name. Description. Sum_range (required). The range of cells to sum. Criteria_range1 (required). The range that is tested using Criteria1.. Criteria_range1 and Criteria1 set up a search pair whereby a range is searched for specific criteria. Once items in the range are found, their corresponding values in Sum_range are added.. Criteria1 (required)

Follow the prompts to install or reinstall the desktop apps. For Microsoft 365 Family or Personal subscriptions: Select Install premium Microsoft 365 apps and follow the prompts to install or reinstall the desktop apps. On the Microsoft 365 subscription tab, select Manage. From here you can: Renew your subscription with a prepaid code or card.