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No, but it's pretty easy to copy rows into a Google Spreadsheet. TimelineJS uses Google's API to access the data from the Google Spreadsheet and turns it into native TimelineJS json.
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No. TimelineJS uses Google's API to access the data from the Google Spreadsheet. If you want to start your work in Excel and then copy and paste your data into a Google spreadsheet, that’ll work but the likelihood of errors increases.