How can I use an old XMP file on a new set of images??

Question

I have an older XMP file that contains settings used to retouch some previous images in a particular way. I'd like to apply those same settings to a new set of images. How can I use that older XMP file on a new set of images in Lightroom?
The contents of the XMP file are as follows:
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 4.2-c020 1.124078, Tue Sep 11 2007 23:21:40   
">
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/">
   <crs:Version>6.0</crs:Version>
   <crs:ProcessVersion>5.7</crs:ProcessVersion>
   <crs:WhiteBalance>Custom</crs:WhiteBalance>
   <crs:Temperature>4700</crs:Temperature>
   <crs:Tint>+4</crs:Tint>
   <crs:Exposure>-0.35</crs:Exposure>
   <crs:Shadows>5</crs:Shadows>
   <crs:Brightness>+50</crs:Brightness>
   <crs:Contrast>+25</crs:Contrast>
   <crs:Saturation>-8</crs:Saturation>
   <crs:Sharpness>25</crs:Sharpness>
   <crs:LuminanceSmoothing>0</crs:LuminanceSmoothing>
   <crs:ColorNoiseReduction>25</crs:ColorNoiseReduction>
   <crs:ChromaticAberrationR>0</crs:ChromaticAberrationR>
   <crs:ChromaticAberrationB>0</crs:ChromaticAberrationB>
   <crs:VignetteAmount>0</crs:VignetteAmount>
   <crs:ShadowTint>-1</crs:ShadowTint>
   <crs:RedHue>0</crs:RedHue>
   <crs:RedSaturation>0</crs:RedSaturation>
   <crs:GreenHue>0</crs:GreenHue>
   <crs:GreenSaturation>0</crs:GreenSaturation>
   <crs:BlueHue>0</crs:BlueHue>
   <crs:BlueSaturation>0</crs:BlueSaturation>
   <crs:FillLight>0</crs:FillLight>
   <crs:Vibrance>+5</crs:Vibrance>
   <crs:HighlightRecovery>24</crs:HighlightRecovery>
   <crs:Clarity>+8</crs:Clarity>
   <crs:Defringe>0</crs:Defringe>
   <crs:HueAdjustmentRed>0</crs:HueAdjustmentRed>
   <crs:HueAdjustmentOrange>0</crs:HueAdjustmentOrange>
   <crs:HueAdjustmentYellow>0</crs:HueAdjustmentYellow>
   <crs:HueAdjustmentGreen>0</crs:HueAdjustmentGreen>
   <crs:HueAdjustmentAqua>0</crs:HueAdjustmentAqua>
   <crs:HueAdjustmentBlue>0</crs:HueAdjustmentBlue>
   <crs:HueAdjustmentPurple>0</crs:HueAdjustmentPurple>
   <crs:HueAdjustmentMagenta>0</crs:HueAdjustmentMagenta>
   <crs:SaturationAdjustmentRed>0</crs:SaturationAdjustmentRed>
   <crs:SaturationAdjustmentOrange>0</crs:SaturationAdjustmentOrange>
   <crs:SaturationAdjustmentYellow>0</crs:SaturationAdjustmentYellow>
   <crs:SaturationAdjustmentGreen>0</crs:SaturationAdjustmentGreen>
   <crs:SaturationAdjustmentAqua>0</crs:SaturationAdjustmentAqua>
   <crs:SaturationAdjustmentBlue>0</crs:SaturationAdjustmentBlue>
   <crs:SaturationAdjustmentPurple>0</crs:SaturationAdjustmentPurple>
   <crs:SaturationAdjustmentMagenta>0</crs:SaturationAdjustmentMagenta>
   <crs:LuminanceAdjustmentRed>0</crs:LuminanceAdjustmentRed>
   <crs:LuminanceAdjustmentOrange>0</crs:LuminanceAdjustmentOrange>
   <crs:LuminanceAdjustmentYellow>0</crs:LuminanceAdjustmentYellow>
   <crs:LuminanceAdjustmentGreen>0</crs:LuminanceAdjustmentGreen>
   <crs:LuminanceAdjustmentAqua>0</crs:LuminanceAdjustmentAqua>
   <crs:LuminanceAdjustmentBlue>0</crs:LuminanceAdjustmentBlue>
   <crs:LuminanceAdjustmentPurple>0</crs:LuminanceAdjustmentPurple>
   <crs:LuminanceAdjustmentMagenta>0</crs:LuminanceAdjustmentMagenta>
   <crs:SplitToningShadowHue>138</crs:SplitToningShadowHue>
   <crs:SplitToningShadowSaturation>13</crs:SplitToningShadowSaturation>
   <crs:SplitToningHighlightHue>0</crs:SplitToningHighlightHue>
   <crs:SplitToningHighlightSaturation>0</crs:SplitToningHighlightSaturation>
   <crs:SplitToningBalance>0</crs:SplitToningBalance>
   <crs:ParametricShadows>0</crs:ParametricShadows>
   <crs:ParametricDarks>0</crs:ParametricDarks>
   <crs:ParametricLights>0</crs:ParametricLights>
   <crs:ParametricHighlights>0</crs:ParametricHighlights>
   <crs:ParametricShadowSplit>25</crs:ParametricShadowSplit>
   <crs:ParametricMidtoneSplit>50</crs:ParametricMidtoneSplit>
   <crs:ParametricHighlightSplit>75</crs:ParametricHighlightSplit>
   <crs:SharpenRadius>+1.0</crs:SharpenRadius>
   <crs:SharpenDetail>25</crs:SharpenDetail>
   <crs:SharpenEdgeMasking>0</crs:SharpenEdgeMasking>
   <crs:PostCropVignetteAmount>0</crs:PostCropVignetteAmount>
   <crs:GrainAmount>0</crs:GrainAmount>
   <crs:ColorNoiseReductionDetail>50</crs:ColorNoiseReductionDetail>
   <crs:ConvertToGrayscale>False</crs:ConvertToGrayscale>
   <crs:ToneCurveName>Medium Contrast</crs:ToneCurveName>
   <crs:ToneCurve>
<rdf:Seq>
<rdf:li>0, 0</rdf:li>
<rdf:li>32, 22</rdf:li>
<rdf:li>64, 56</rdf:li>
<rdf:li>128, 128</rdf:li>
<rdf:li>192, 196</rdf:li>
<rdf:li>255, 255</rdf:li>
</rdf:Seq>
   </crs:ToneCurve>
   <crs:CameraProfile>Adobe Standard</crs:CameraProfile>
   <crs:CameraProfileDigest>3DA8CE4A626CE36A1D0C55BF157793C9</crs:CameraProfileDigest>
   <crs:HasSettings>True</crs:HasSettings>
  </rdf:Description>
</rdf:RDF>
</x:xmpmeta>

Answer 1

I’m pretty sure Adobe NEVER intended for someone to copy an XMP file from one photo to another outside of LR as a way to replicate settings.   You can make a preset from a photo, as discussed, or if you don’t want to do that, copy-paste the settings from a representative photo that you initially select to one or more new photos.  You could have a special LR folder that holds standard photos to copy/paste from.  Of course creating a Develop preset from the representative photo is the “normal” way to handle such situations, but maybe you have hundreds of different situations to copy settings from and don’t want to create presets for each one, but I’d argue that you could create a complex folder hierarchy for your presets and still have them findable without that much problem.
As far as the mystery about why some photos show Reset and some show From Metadata, is the Process Version (down in Camera Calibration) of the photo before reading the settings the same between the two situations?  And in general, are these virgin photos newly imported into LR or have some been modified in LR, already?  Does an XMP file already exist for any of these, where that XMP is being overwritten by your external-to-LR copying?  Or do you have auto-write-XMP enabled and your hand-copied XMP is getting overwritten by LR, automatically, before you have a chance to read in anything?