A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I think your expectations about how data bars work are not correct. Don't set the minimum and maximum like that. It does not make sense to do that. That's not how this works, so Excel does not allow this.
Data bars visualise the relative size of values in a range of cells. Data bars are not applied to a single cell. If you do apply a data bar conditional format to a single cell, that cell will always have a complete fill.
Look at my example above. When the data bar is set to the first cell, the whole cell is blue. Only when the conditional format is applied to more cells, you see that the data bars differ in length, showing the relative value of the whole set of cells in a blue bar.
So, again, here are the steps:
- Create the formula in the first row,
- then apply data bars with the default settings.
- Then copy down.
You can see the steps in my animated screenshot above. The length of the data bars in each cell will be relative to the number compared to all other values in that the same format applies to.
If you don't want to use that, you can enter a minimum and a maximum number for the lower and upper bounds of your data bars, instead of having Excel calculate that dynamically. You could set the minimum to zero and the maximum to a fixed number. Or set the maximum to a cell that has the desired upper bound. The cell address for these limits are always absolute references. See the difference between the default settings with Excel's calculation on the numbers in the range and the manual settings with minimum and maximum.