Webix SpreadSheet excel exports references to empty fields as 0

Webix JS
1

When I have a reference to an empty field lets say for B1:1 cell my value is =C1 where C1 is just a blank cell . When I do excel export I see in B1:1 the value is 0. In old versions of webix this is getting even worse I see the cell value is [object Object] and I get a warning message saying that excel file is corrupted when I try to open it. Is there any workaround for this, I want to see empty cells in this case same as they are displayed in spreadsheet UI.

Here’s the code sample
https://snippet.webix.com/r3dj46w3

2

it is an excel limitation. try to use similar formula in Excel, the result will be the same.
as a workaround try to check for empty value

=IF(ISBLANK(C1), "", C1)

https://snippet.webix.com/9xb73z95