Click the “View” icon from the toolbar and then click the image that you would like to make smaller. Click view from the main list and then choose the picture that you want to delete · 3 Click save as to save the picture to a file location on your computer or save the picture in a format that is easy to open in Windows 10. How To Reduce Photo File Size Using Microsoft Office Windows 10 Photo App to Compress Pictures Windows 10 Picture App to Reduce File Size For images that are not in Microsoft Office, the Windows 10 Photo app on your Windows 10 PC is a powerful photo editor that you can use to optimize the image quality and improve your image editing. Here are 5 quick ways to use telephoto app to make your Windows 10 photos great. 1. Reduce image size in Microsoft Word/Excel Windows 10 Photo App is a powerful photo editor that you can use to optimize your photos and edit them in Microsoft Excel or Word. Here are 5 quick ways to use telephoto app to make your Windows 10 photos great. How to Reduce Photo File Size Using Microsoft Outlook To reduce file size and save data, you can reduce data usage in Microsoft Outlook by using a web app that allows you to use any of your Outlook emails for file saving. To do this, you must be using the Windows 10 Mobile or other apps from the Windows Store to save and sync documents on a computer. The Windows 10 Mobile version of Outlook Mobile does not currently support saving pictures. The Windows 10 Mobile version of Outlook Mobile, however, supports exporting to .PNG format but no longer supports saving pictures, and you can only send messages in .PNG format to other devices. Windows 10 Mobile, however, is currently not supporting saving images. The Windows 10 Mobile version of Outlook Mobile includes some new features, such as the ability to do live presentations and share multiple images. A few new features have also been added to help save you some time in Outlook. You can now see an item's attachments using the 'View' menu item (in both the mobile and desktop versions of Outlook, including on mobile devices without support for the Microsoft Outlook app). Attachments can also be dragged into an email message directly and then saved as a .PNG image file. You can also use the Outlook mobile 'View' menu to view attachments from your email, such as an image, in the Mail App, and then save your email as an .PNG message.