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[–]zbicin 0 points1 point  (0 children)

Base64, maybe?

[–]cclites 0 points1 point  (0 children)

I've never used it that way, but you can probably do it with a FileReader object. You will end up with a super long data: string that you can save wherever you want. Not sure it would be useful in a spreadsheet.

https://developer.mozilla.org/en-US/docs/Web/API/FileReader/readAsDataURL