sorry im still new. i need line spacing 3 for my format. in the line spacing option the maximum value is 2, more than that are going into custom but i dont know how to make it look similiar like ms. word line spacing 3. can anyone help me please. thankyou.
Effectively, the amount of automatic (based on font size) spacing is limited to 200% in Proportional mode. This is another too protective limitation of LO Writer. But you have a work around.
Set mode to Fixed and enter an absolute value. Of course, if you change the font size, you must update the value.
A point is 1/72 inch. Therefore, a 12pt font size is 1/6 inch. To get triple line spacing, the distance is 1/2 inch or 1,27 cm.
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it works. thankyou very much.
You can simply edit the dialog template in LibreOffice installation to remove the arbitrary limit. Open <LibreOffice install path>/share/config/soffice.cfg/cui/ui/paraindentspacing.ui, and remove the <property name="upper">200</property> inside <object class="GtkAdjustment" id="adjustmentLINEDISTPERCENT"> element. You might also change the lower limit there to 6, to match the limit of MS Word 
Unfortunately the “fix” I suggested is not enough: the code uses 8-bit variables and expects 200 left and right. I address that in the fix tracked in the bug mentioned above.