You can remove leading, trailing, and extra spaces between characters and numbers in Excel using TRIM (), SUBSTITUTE () or Find and Replace.

The Substitute function in Microsoft Excel replaces a specific text in a text string with a different text. The Replace function replaces part of a text string based on the number of characters ...

Excel's "Find and Replace" feature will search an entire spreadsheet or selected cells for your specified text. Excel also offer a "Replace" function.