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Zip and unzip files - Microsoft Support
To unzip (extract) files or folders from a zipped folder. Locate the zipped folder that you want to unzip (extract) files or folders from. To unzip a single file or folder, open the zipped folder, then drag the file or folder from the zipped folder to a new location.
Reduce the size of pictures and attachments in Outlook email messages
Documents, spreadsheets, PDF files, and other types of files can vary greatly in size. There are several methods you can use to keep the size of your email messages and attachments small when sending these files. For more information specific to reducing picture files, see the section.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
Zip and unzip files - Microsoft Support
In the search box on the taskbar, type file explorer, and then select it from the list of results. Right-click the file you want to zip, and then select Send to > Compressed (zipped) folder . To decompress files. Open File Explorer and find the compressed folder. To unzip the entire folder, right-click to select Extract All, and then follow the ...