When you import data into Excel spreadsheets from Internet pages or CSV files, Excel fails to recognize some numbers and converts them to the default text type. Temporarily changing Excel settings helps to reduce the amount of manual work and the number of errors on replacing comma to point, dot to comma, semicolon to comma, etc. Also, you need to change decimal delimiter settings for printing or exporting data for international users.

After recent updates, the ribbon in Microsoft Excel can take up to 1/3 of the available screen space. Microsoft Office help tells that you can hide or unhide your ribbon, but you cannot reduce the size of your ribbon, or size of the text or the icons. False! You can change the mode and remove unnecessary white space around buttons, and, thus, reduce the ribbon size.

Excel automatically creates hyperlinks if you type or insert some text that Excel sees like a hyperlink such as URL or e-mail. You can quickly turn off and turn on the automatic creation of hyperlinks for more comfortable work in Excel ☺.

When you work in Excel, by default, it automatically identifies all issues, such as incorrect data in the cell, problems with formulas, etc. So, you see green triangles (by default) shown in the top left corner of these cells.

By default, gridlines are displayed in worksheets using a color that is assigned by Excel. But if you want, you can change the color of the gridlines for a worksheet (see also How to turn on and turn off gridlines in Excel and How to change width of gridlines in Excel).

Gridlines help you align shapes and create consistent dimensions for each object. In Excel, gridlines are simulated by column borders, and changing column widths and heights essentially controls your gridlines.

By default, gridlines are displayed in worksheets, but you can hide the gridlines.

The default installation of Excel has reasonable presets for chart types and colors, but you can change those defaults according to your own preferences.

Excel is heavily used by all Microsoft Office users and automatically opened workbooks, customizations of the menu, recent documents, and start screen allow you to save a lot of time.

When you select a range of data, Excel displays a Quick Analysis button in the lower-right corner of the range. But this option can be turned off.