This error indicates that a column is not wide enough to display all of its content, or that a negative date or time is used in a cell.
Symptom
Excel displays ##### in one or more cells on a worksheet.
Causes
- The column is not wide enough to display the content.
- Dates and times are negative numbers.
Resolution
- Increase the width of the column to fit the text by doing the following:
- Select the column by clicking the column header.
- On the Home tab, in the Cells group, click Format.

- Under Cell Size, click AutoFit Column Width.
- Shrink the text size of the contents to fit the column by doing the following:
- Select the column by clicking the column header.
- On the Home tab, in the Alignment group, click the Dialog Box Launcher
next to Alignment.
- Under Text control, select the Shrink to fit check box.
- Apply a different number or date format.
In some cases, you can change the number or date format of a cell to make its contents fit within the existing cell width. For example, you can decrease the number of decimal places after the decimal point or switch from a Long Date to a Short Date format.
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If you are using the 1900 date system, dates and times in Microsoft Office Excel must be positive values.
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When you subtract dates and times, make sure that you build the formula correctly.
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If a formula that you use to calculate dates or times is correct but results in a negative value, do the following to display that value in a format that is not a date or time format:
- On the Home tab, in the Number group, click the Dialog Box Launcher
next to Number.
- In the Category box, click a number format that is not a date or time format.