If you have a spreadsheet where the text in your column headings (not the lettered column headings) is longer than the text in the columns, and there are a lot of columns, you may want to rotate the text in your headings so the columns become narrower.
HOW TO ROTATE TEXT WITHOUT ROTATING BORDERS
Fit more text in column headings - Microsoft Support
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Excel Full Course in Easy English - Excel Learn
How to rotate text in Excel
Align or rotate text in a cell, Excel Short Clip, Tutorial, #shorts
Align or rotate text in a cell - Microsoft Support
Regarding rotating text in a cell when opened in web - Microsoft Community Hub
How to Rotate Text in Microsoft Excel
How to Rotate Cell Contents in Excel – Rotate Text in a Cell - Earn & Excel