Fix conversion from html to spreadsheet

A lot of changes because the import filter depends on the destination format.
This is equivalent to specifying --calc when using the command-line API.
8 jobs for master in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
passed Cloudooo.UnitTest-Master

00:09:25

passed Cloudooo.UnitTest-Master

00:15:58

passed Cloudooo.UnitTest-Master

00:10:19

passed Cloudooo.UnitTest-Master

00:17:22

passed Cloudooo.UnitTest-Master

00:08:43

passed Cloudooo.UnitTest-Master

04:35:21

passed Cloudooo.UnitTest-Master

00:16:50

passed Cloudooo.UnitTest-Master

00:09:56