Microsoft Excel is a spreadsheet application that you can use to organize, analyze, and share data. When working in a workbook, Microsoft Excel saves the files automatically. It saves the file giving it a temporary file name and stores the file with the same folder along with the original version. When you manually save the file, the original file gets deleted, and the temporary file is saved with the name of the original file. Due to any interruption, the excel sheet might not save correctly. You might end up getting one or many temporary files in the same folder where you tried to save your file. Furthermore, you might get alerts or error messages. Excel issues might arise when trying to save excel workbooks. This applies to your excel for Office 365, Excel 2019 and even to Excel 2016.