Save Your Spreadsheet in Binary (.Xslb) Format

Microsoft Excel typically stores files in an XML-based format, facilitating data exchange with various applications and systems. Yet, for those seeking a swift reduction in file size, converting the Excel spreadsheet into a binary format is an option.

To save an Excel spreadsheet in binary format, follow these instructions:

1. Open your Excel spreadsheet.
2. Go to File and then Save As.
3. Choose where you want to save the file.
4. Click on the Save as type drop-down menu and select Excel Binary Workbook (*.xlsb).
5. Finally, click the Save button.

This action will convert your Excel file into a binary format, demanding less storage space. If you wish to set Microsoft Excel to save files in this binary format by default consistently, follow these steps:

1. Open Microsoft Excel and go to File > Options.
2. Choose the Save tab from the left sidebar.
3. Use the dropdown menu next to "Save files in this format" and select the "Excel Binary Workbook (*.xslb)" option.
4. Click OK to save the changes.

After following the steps mentioned by Toplist, Excel will save all files in binary format by default, unless you specify otherwise.