xls roundtrip issues

Submitted by an unknown user

Description

From bug 744152:

File attachment 296354.

Convert to xls.

Observe that in .xls [...] the y-axis has switch from "low" position to "cross at 0". In contrast, oddly enough, the x-axis works correctly.

From bug 743560:

File attachment 295840.

$x/ssconvert xy-fill.gnumeric xy-fill.xls Open the .xls file. Observe no fill at all. Use the chart properties dialog to change the fill type. Observe that it now fills to Y=0 Change the fill mode to "fill to self". Observe that it now looks properly triangular. Save the .xls file and quit. Reopen the .xls file. Observe that the fill type and fill-to mode have vanished again.

Version: git master