It sounds like Excel is interpreting your x-axis values as text instead of numerical values. Here are a few steps you can try to fix this issue:
- Select the cells containing your x-axis values and make sure they are formatted as numbers. You can do this by right-clicking on the cells, selecting "Format Cells," and choosing the "Number" category.
- If step 1 doesn't work, try converting your x-axis values to numbers using the function. For example, if your x-axis values are in column A starting from cell A2, you can enter the formula "=VALUE(A2)" in cell B2 and drag it down to convert all the values in column A to numbers. Then, use column B as your x-axis values in the chart.
- If neither of the above steps work, try recreating the chart from scratch. Make sure to select the correct range for your x-axis values and choose the "Scatter" chart type.
I hope one of these solutions works for you!