Sure, I can help you with that! Here's a step-by-step guide on how to create a Levy Jennings QC plot template in Microsoft Excel:

1. Open a new Excel workbook and create a new sheet for your QC data.
   
2. In the first column, enter the dates of your QC tests. In the second column, enter the results of your QC tests.
   
3. Calculate the mean and standard deviation of your QC results. To do this, use the
   Formula:

   AVERAGE 

   and
   Formula:

   STDEV 

   functions in Excel. For example, if your QC results are in column B, you can enter "=AVERAGE(B:B)" in a cell to calculate the mean, and "=STDEV(B:B)" in another cell to calculate the standard deviation.
   
4. Create a new sheet for your Levy Jennings plot. In the first column, enter a range of values that covers the range of your QC results. For example, if your QC results range from 80 to 120, you could enter values from 70 to 130 in the first column.
   
5. In the second column, enter the mean of your QC results.
   
6. In the third column, enter the upper control limit (UCL) and lower control limit (LCL) for your QC results. To calculate the UCL and LCL, use the following formulas:
   
   UCL = mean + (2 * standard deviation)
   LCL = mean - (2 * standard deviation)
   
7. Select the data in the first three columns and create a line chart. To do this, go to the Insert tab, click on the Line chart icon, and select the first option (Line).
   
8. Format the chart to your liking. You can add a chart title, axis labels, and gridlines. You can also change the colors and styles of the lines and markers.
   
9. Save the workbook as a template so you can reuse it for future QC tests. To do this, go to the File tab, click on Save As, and select Excel Template (*.xltx) from the Save as type dropdown menu.

That's it! You now have a Levy Jennings QC plot template that you can use to plot your hematology QC data. Let me know if you need any further assistance.