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Dynamic Arrays
Why am I getting a #SPILL! error in Excel?
A #SPILL! error means Excel has a formula that wants to return multiple values, but it cannot place the full result into the worksheet. The spill range may be blocked, contain merged cells, sit inside an Excel Table, or extend beyond the worksheet.
Data Manipulation
Why does SUMIF return 0 in Excel?
SUMIF often returns 0 when Excel cannot find a valid match to sum. Common causes include mismatched data types, criteria that do not exist in the criteria range, text values where numbers are expected, or ranges that do not align with the intended data.