You can add a zero before a number in Google Sheets and Excel using this tutorial. You need to change cell formatting or use function.

To copy only visible cells in Excel or Google Sheets, use the 'Visible cells only' feature, or apply filters to hide data. We show you how!

Pivot tables let you parse raw spreadsheet data to display specific information in a concise, easy-to-digest format. Here’s how to use them in Google Sheets.

You may need to add cells in Google Sheets if your spreadsheet needs to contain more information than it currently has room for.