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In Outlook, choose File, choose Open & Export, and then choose Import/Export.
In Import and Export Wizard box, choose Import an iCalendar (. ics)
Choose the extracted file from your PC and choose OK.
Choose Import. The items are automatically imported into your calendar.
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Open Google Calendar.
In the top right, click the Settings Gear, then Settings.
In the menu on the left, click Import & Export.
Click Select file from file from your computer and select the file you exported.
Choose which calendar to add the imported events to.
Click Import.
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