In Excel, I usually solve ##### errors by double-clicking offending column headers. However, this can get a bit tedious when there are multiple error columns. Is there a quicker way to solve this?
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32No need to swear! – Andrew Grimm Jun 16 '15 at 14:24
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27@AndrewGrimm, this is Excel we're talking about. – Mark Jun 16 '15 at 22:16
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2Is ##### actually an error? – Scott Seidman Jun 18 '15 at 12:49
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1@ScottSeidman it's not `#NULL!`, `DIV/0!`, `VALUE!`, `#REF!`, `#NAME?`, `#NUM!` or `#N/A` - so not, it wouldn't be identified as an error by something like `iferror()` – Raystafarian Jun 18 '15 at 13:15
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@Raystafarian -- then its just a display convention, or some such. – Scott Seidman Jun 18 '15 at 13:42
4 Answers
You can autosize multiple columns at the same time by double clicking, just like you do with a single column.
Step 1. Select multiple columns:
Either select all columns by clicking in the arrow in the upper-left corner:

Or click and drag to select a smaller range of columns:

Step 2. Autosize selected columns:
Now double click on the right boundary of any of the selected columns, when your cursor changes to the column-resizing double arrow.


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This is a worse solution than autofit because it resizes columns to the same width – JamesRyan Jun 18 '15 at 11:27
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3@JamesRyan - It seems to autofit properly. I just verified with different length values. Are you sure you're double clicking to resize the column instead of clicking and dragging? – Justin Jun 18 '15 at 13:01
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ah I think that has changed since earlier versions when I learnt not to do it – JamesRyan Jun 18 '15 at 14:17
Yes, on the ribbon go to Home - Cells and click Format
Under there, you can choose Autofit either Row Height or Column Width.

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For the keyboard warriors, here's a technique that doesn't require the mouse:
- Select all - Control+A or Control+Shift+8
- AutoFit columns - Hold Alt, then press in sequence O, C, A. You can let go of Alt after you press O.
This feature, called Office Access Keys is a holdover from the pre-ribbon days. If you had memorized the old menus, you can continue to access them this way.
In this case, the navigation was:
- Format
- Column
- AutoFit
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1Alt H, O, I is the new access key for this... it seems a bit slower though as for me it takes a few seconds for office to draw the shortcut keys (which it doesn't bother with for the old keys). – Random832 Jun 16 '15 at 20:36
In addition to narrow columns, the hashes can also be displayed when a cell containing a large text is formatted as Text. In Excel 2003 (and before?), this happens when the cell contains 256 to 1024 characters.
Changing the category from Text to General helps.
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