A simple of a .spritefont file - which is really an xml file - used to compile fonts in XNA and MonoGame.

sample.spritefont

<?xml version="1.0" encoding="utf-8"?>
<XnaContent xmlns:Graphics="Microsoft.Xna.Framework.Content.Pipeline.Graphics">

  <Asset Type="Graphics:FontDescription">

    <FontName>Segoe UI Mono</FontName>

    <Size>14</Size>

    <Spacing>0</Spacing>

    <UseKerning>true</UseKerning>

    <Style>Regular</Style>

    <CharacterRegions>
      <CharacterRegion>
        <Start>&#32;</Start>
        <End>&#126;</End>
      </CharacterRegion>
    </CharacterRegions>
  </Asset>
  
</XnaContent>