Is there an easy way to modify hyperlinks in Calc

[SiEntomologist]

Other than reentering every link from scratch, is it possible to, say, replace all occurrences of “http://” with “https://”?

Also, why aren’t hyperlinks treated as attributes - like date formats? For example, if a cell already contains the text string https://libreoffice.org/, why does there not appear to be a way to make it a hyperlink with a click on the Format Cells dialog?

[Lupp]

As opposed to Writer, ordinary hyperlinks in Calc aren’ text portions formatted in a special way, but TextField objects treated by the insertion cursor as if being just one character.

However, standard functions and tools know how to resolve linkis for their operations.

Thus: Simply use the F & R (Find and Replace) tool.