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diff --git a/01-format-data.html b/01-format-data.html
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@@ -611,7 +611,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/02-common-mistakes.html b/02-common-mistakes.html
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@@ -866,7 +866,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/03-dates-as-data.html b/03-dates-as-data.html
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 	<div id="to-top">
@@ -699,7 +699,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/04-quality-control.html b/04-quality-control.html
index 19302130..6f096440 100644
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Click the Sort button on the data tab in Excel. A pop-up will appear.
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@@ -596,7 +596,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -553,7 +553,7 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/404.html b/404.html
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 	<div id="to-top">
@@ -385,7 +385,7 @@ <h1>Contributor Code of Conduct</h1>
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diff --git a/LICENSE.html b/LICENSE.html
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 	<div id="to-top">
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diff --git a/NEWS.html b/NEWS.html
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@@ -377,7 +377,7 @@ <h1></h1>
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index b118750f..51d097b1 100644
--- a/aio.html
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Click the Sort button on the data tab in Excel. A pop-up will appear.
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-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
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 <div class="accordion-body">
 <p>Cells that contain non-numerical values are not colored. This
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@@ -2169,8 +2169,8 @@ <h3 class="callout-title">Key Points</h3>
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diff --git a/datamanagement.html b/datamanagement.html
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@@ -447,7 +447,7 @@ <h1>Data Management Tips</h1>
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@@ -437,7 +437,7 @@ <h3 id="dealing-with-commas-as-part-of-data-values-in-csv-files">Dealing with co
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@@ -496,8 +496,8 @@ <h3 id="05-exporting-data-figure-3">Figure 3</h3>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 	<div id="to-top">
@@ -496,8 +496,8 @@ <h4 id="linux">Linux<a class="anchor" aria-label="anchor" href="#linux"></a></h4
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@@ -565,8 +565,8 @@ <h4 id="people-are-not-interactive-or-responsive-on-the-exercise">People are not
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@@ -543,7 +543,7 @@ <h3 class="callout-title">Key Points</h3>
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 	<div id="to-top">
@@ -613,7 +613,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -868,7 +868,7 @@ <h3 class="callout-title">Key Points</h3>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 	<div id="to-top">
@@ -701,7 +701,7 @@ <h3 class="callout-title">Key Points</h3>
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 	<div id="to-top">
@@ -598,7 +598,7 @@ <h3 class="callout-title">Key Points</h3>
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 	<div id="to-top">
@@ -555,7 +555,7 @@ <h3 class="callout-title">Key Points</h3>
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@@ -364,8 +364,8 @@ <h1>Page not found</h1>
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@@ -364,7 +364,7 @@ <h1>Contributor Code of Conduct</h1>
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@@ -387,7 +387,7 @@ <h1>Contributor Code of Conduct</h1>
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
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--- a/instructor/LICENSE.html
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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 	<div id="to-top">
@@ -435,7 +435,7 @@ <h1>Licenses</h1>
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   "dateCreated": "2015-03-09",
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diff --git a/instructor/NEWS.html b/instructor/NEWS.html
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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@@ -379,7 +379,7 @@ <h1></h1>
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@@ -2179,8 +2179,8 @@ <h3 class="callout-title">Key Points</h3>
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         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -449,7 +449,7 @@ <h1>Data Management Tips</h1>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 	<div id="to-top">
@@ -439,7 +439,7 @@ <h3 id="dealing-with-commas-as-part-of-data-values-in-csv-files">Dealing with co
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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@@ -500,8 +500,8 @@ <h3 id="05-exporting-data-figure-3">Figure 3</h3>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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@@ -567,8 +567,8 @@ <h4 id="linux">Linux<a class="anchor" aria-label="anchor" href="#linux"></a></h4
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@@ -575,8 +575,8 @@ <h4 id="people-are-not-interactive-or-responsive-on-the-exercise">People are not
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diff --git a/instructor/key-points.html b/instructor/key-points.html
index a5ed5ce0..db5ea7de 100644
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@@ -462,8 +462,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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@@ -336,8 +336,8 @@ <h1>Learner Profiles</h1>
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   "identifier": "https://datacarpentry.github.io/spreadsheet-ecology-lesson/instructor/profiles.html",
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-  "dateModified": "2024-09-03",
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diff --git a/instructor/reference.html b/instructor/reference.html
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@@ -423,7 +423,7 @@ <h1>Glossary</h1>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 	<div id="to-top">
@@ -446,7 +446,7 @@ <h1>Glossary</h1>
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   "dateCreated": "2015-03-09",
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diff --git a/key-points.html b/key-points.html
index b52e6524..b001804e 100644
--- a/key-points.html
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@@ -435,7 +435,7 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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@@ -458,8 +458,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
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   "dateCreated": "2015-03-09",
-  "dateModified": "2024-09-03",
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diff --git a/pkgdown.yml b/pkgdown.yml
index 87f6f682..f2fc82da 100644
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@@ -2,4 +2,4 @@ pandoc: 3.1.11
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index 031de5ae..e416c90b 100644
--- a/profiles.html
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@@ -314,7 +314,7 @@ <h1>Learner Profiles</h1>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 		</footer></div> <!-- / div.container -->
 	<div id="to-top">
@@ -336,8 +336,8 @@ <h1>Learner Profiles</h1>
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   "identifier": "https://datacarpentry.github.io/spreadsheet-ecology-lesson/profiles.html",
   "dateCreated": "2015-03-09",
-  "dateModified": "2024-09-03",
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 }
 
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diff --git a/reference.html b/reference.html
index a258f80b..f1537d6e 100644
--- a/reference.html
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@@ -421,7 +421,7 @@ <h1>Glossary</h1>
         <p>Materials licensed under <a href="LICENSE.html">CC-BY 4.0</a> by the authors</p>
 
         <p>Template licensed under <a href="https://creativecommons.org/licenses/by-sa/4.0/" class="external-link">CC-BY 4.0</a> by <a href="https://carpentries.org/" class="external-link">The Carpentries</a></p>
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+        <p>Built with <a href="https://github.com/carpentries/sandpaper/tree/0.16.7" class="external-link">sandpaper (0.16.7)</a>, <a href="https://github.com/carpentries/pegboard/tree/0.7.6" class="external-link">pegboard (0.7.6)</a>, and <a href="https://github.com/carpentries/varnish/tree/1.0.4" class="external-link">varnish (1.0.4)</a></p>
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 	<div id="to-top">
@@ -444,7 +444,7 @@ <h1>Glossary</h1>
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   "dateCreated": "2015-03-09",
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