One way to overlay a histogram on a curve in Excel is to create the chart by plotting the curve first, then add the histogram data as an additional series of data. To do this, select the data and click the "Insert" tab at the top of the screen. Select "Scatter" under the "Charts" area, then select the sub-type that best describes your data. Select "Series" and click "Add," then select the histogram data and select the appropriate sub-type. Click "OK," then right click on one of the data series and select "Chart Type." Change the type of the new series to "Column" and select "OK."

1. Select the cell in which you want to add the drop-down list. 2. On the ribbon, select the Data tab and then click the Data Validation option. 3. On the Data Validation window, in the Allow box, select List. 4. In the Source box, enter the list items separated by commas. 5. Click the OK button to apply the changes. Your drop-down list will now be available in the selected cell. To select an item from the list, click the down arrow to the right of the cell, and then select the item from the list.

In Excel, a check mark is a character symbol used to indicate a value of "yes" or "true." It is typically used in a spreadsheet when a cell contains either a TRUE or FALSE value.

Excel may not be auto-filling if the option is not enabled, if the data is not formatted properly, or if the data is not continuous. To enable auto-fill, go to the File menu, select Options, select the Advanced tab, and check the Enable fill handle and cell drag-and-drop option. To ensure proper formatting, make sure that the data is in columns and does not contain any blank cells. If the data is not continuous, Excel may not be able to detect the pattern for auto-filling.

- Ctrl + D - copies the content and format of the selected cell. - Ctrl + C - copies the content of the selected cells. - Ctrl + V - pastes the content of the clipboard into the cell. - Ctrl + Z - Undo the last action. - Ctrl + Y - Redo the last undone action. - Ctrl + F - Find a specific item in a worksheet. - Ctrl + S - Save the current workbook. - F2 - Edit the selected cells contents. - Ctrl + A - Selects all of the content in a worksheet. - Ctrl + P - Opens the print dialog box. - F4 - Repeats the last command. - F5 - Opens the Go To dialogue box. - Ctrl + ; - Inserts the current date into the selected cell. - Ctrl + Shift + : - Inserts the current time into the selected cell.

1. If you have the workbook open, you can select External Data from the ribbon in Access and choose the Excel File option from the menu, then browse to the workbook you want to link. 2. You can also link to an Excel workbook directly by selecting External Data again, and under the Linked Table Manager, select the Linked Table option, choose Excel File and then browse to the source file. 3. From the Link Table Manager, you can check the “Always Prompt for New Location” option, which will let Access know to look in the same location every time it needs to access the file.

1. Using Data Connection Wizard: You can use the Data Connection Wizard in Excel to connect to external data sources. This allows you to connect to databases, web services, and text files. To access this wizard, navigate to the Data tab and select 'From Other Sources.' 2. Using Power Query: Power Query is a powerful data source connection tool available for Excel and Power BI which allows you to connect to, transform, and clean up data from external sources. It is available from the Power Query tab. 3. Using External Data Sources: Excel has built-in functionality for connecting to external data sources, such as ODBC, ODBC Direct, SQL Server, etc. To access these external data sources, you will need to go to the Data tab and select the From Other Sources button.

1. LEFT Function: The LEFT function in Excel is used to extract a certain number of characters from the leftmost side of the text string. The syntax for the LEFT formula is: =LEFT(text, [num_chars]) Where text is the text string from which characters need to be extracted, and [num_chars] is the number of characters you want to extract from that string. For example, if the text string is “ ExcelTip”, and you want to extract "Excel" from the text string. You can use the LEFT function as =LEFT(" ExcelTips", 5) which will return "Excel". 2. RIGHT Function: The RIGHT function in Excel is used to extract a certain number of characters from the rightmost side of the text string. The syntax for the RIGHT formula is: =RIGHT(text, [num_chars]) Where text is the text string from which characters need to be extracted, and [num_chars] is the number of characters you want to extract from that string. For example, if the text string is “ ExcelTips”, and you want to extract "Tips" from the text string. You can use the RIGHT function as =RIGHT(" ExcelTips", 4) which will return "Tips". 3. MID Function: The MID function in Excel is used to extract characters from the middle of the text string. The syntax for the MID formula is: =MID(text, start_num, [num_chars]) Where text is the text string from which characters need to be extracted, start_num is the character position from which you want to extract characters from the text string and [num_chars] is the number of characters you want to extract from the text string. For example, if the text string is “ ExcelTips”, and you want to extract "eTip" from the text string. You can use the MID function as =MID(" ExcelTips", 2, 4) which will return "eTip".

In Excel, you can turn off automatic calculation by changing the calculation settings. To do so, go to the File tab, select Options, and then select Formulas from the left-hand menu. Here you can change the Calculation options and select Manually from the drop-down menu as the Calculation mode. This will turn off the automatic calculation in your workbook.

1. Using Data Validation: Select the cell or cells where you want the drop down list to appear, then, on the Data tab, click Data Validation. In the Allow dropdown, select List, then either type in the items you want to appear, separated by commas, or click the icon next to the Source box, and select the range of cells with the list items. 2. Using Named Ranges: Create the list of items in the worksheet, then select the cells with the list, and click Formulas > Define Name. Give the list a meaningful name like “ProductType”, then use the named range in the data validation dialogue. 3. Using a ComboBox Form Control: On the Developer tab (in the ribbon), click Insert and under ActiveX Controls, select Combo Box. Click and drag on the worksheet to place/size the box, then double-click it to open the Properties dialogue. Enter the items in the ListFillRange box and click OK.