Initially, download and install the application successfully on your Windows machine.
![download tgz to ics converter](../../images/screenshot/tgz-to-ics/download-tgz-to-ics-converter.webp)
Take help of the Browse button and load TGZ files.
![gaintools tgz to ics converter](../../images/screenshot/tgz-to-ics/gaintools-tgz-to-ics-converter.webp)
Find the complete preview of Zimbra calendars.
![open tgz](../../images/screenshot/tgz-to-ics/open-tgz.webp)
Choose ICS file format in Export options.
![select ics file](../../images/screenshot/tgz-to-ics/select-ics-file.webp)
Click the Browse button and mention a path to save ICS files to your system.
![selection of output format](../../images/screenshot/tgz-to-ics/selection-of-output-format.webp)
To begin the conversion task, hit the Generate Now button.
![click generate now](../../images/screenshot/tgz-to-ics/click-generate-now.webp)