LibreOffice Help states:
Double variables can take positive or negative values ranging from 1.79769313486232 x 10E308 to 4.94065645841247 x 10E-324.
On 64-bit Windows 11 and 7, with LibO 25.2.5.2, the following macro
sub Main
Dim varD As Double
varD = 4.94065645841247E-324
end sub
generates the error message:
“Inadmissible value or data type.
Overflow.”