Mac users are probably aware of the problem of insufficient Finder column widths to display the full file name. The problem is not difficult to fix – by moving the dividing line, adjusting the width manually.
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But such a solution is only temporary, and who said that the column will be wide enough for other files in the list? As a result, some names will still not be fully displayed, which will not make it possible to fully examine the contents of the folder. Fortunately, you can easily adjust the width of the column using a convenient trick.
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How to adjust column width in Finder based on content
1. Open the Finder.
2. Place the mouse pointer on the dividing line.
3. The pointer will change its appearance to two arrows looking in different directions relative to the vertical line.
4. Then double-click on the dividing line.
The column width automatically adjusts to the longest file name in the current column. Thus, all file names will be fully displayed.
Please note that this technique only works when the view is activated in Finder: List or Speakers. And the next time you run Finder, the settings will not be saved – you will have to re-create the width of the columns.
Extra tip: when double-clicking on the dividing line, press ⌥Option (Alt)then all displayed columns will be adjusted depending on the content. In addition, you can also click on the separator by a second click (right mouse button) for additional parameters.