In Excel, if the summation result shows 0, it may be caused by several reasons. Here are some possible causes and solutions:
Data format issues: Make sure that the cell you are summing contains numbers, not numbers that are formatted as text. If it's a text format, Excel won't count it. You can change the formatting by selecting a cell, and then selecting General or Number under Number Format in the Start menu.
The formula is wrong: Check if your summation formula is correct. The correct formula for summation should be=sum(region).。Make sure there are no errors, such as missing parentheses or incorrect range designation.
Hidden rows or columns: If you sum the range with hidden rows or columns, those values will still be counted. However, if the problem is that some rows are hidden because of the filter and you don't want them to be calculated, then you may need to adjust your data filters.
The cell contains an error: If any cell in the summing range contains an error (such as#div/0!), the entire summation result may appear as an error. Check every cell in the range to make sure there are no errors.
Empty cells are used: Make sure you're not trying to sum a range that is completely empty, because the result of summing empty cells is naturally 0.
Formula setting issues: In some cases, Excel's calculation options may be set to "Manual", causing the formula to not update automatically. You can change this setting by selecting Auto Calculate in File > Options > Formulas > in Workbook Calculations.
If the problem persists after checking all of the possible causes above, you may want to check further for specific workbook settings or explore if there are other, more specific issues affecting your summation formula.