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index f5e77ae..b4ce1bb 100644
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   "dateCreated": "2023-05-03",
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diff --git a/01-format-data.html b/01-format-data.html
index 30b9635..30c0270 100644
--- a/01-format-data.html
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@@ -447,7 +447,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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@@ -559,7 +559,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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index 0296901..8663d6d 100644
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diff --git a/03-dates-as-data.html b/03-dates-as-data.html
index 3edae6c..ba65eb3 100644
--- a/03-dates-as-data.html
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   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><img src="fig/solution_exercise_1_dates.png" class="figure"> {alt=‘dates, exersize
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@@ -400,7 +400,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>To get the year, type <code>=YEAR(NOW())</code> into any cell in
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@@ -502,7 +502,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul><li>Click to the <code>dates</code> tab of the workbook and double-click
 on any of the values in the <code>Date collected</code> column. Notice
@@ -652,7 +652,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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diff --git a/04-quality-control.html b/04-quality-control.html
index bc9e338..bc85f58 100644
--- a/04-quality-control.html
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@@ -405,7 +405,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </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.
 Make sure you select <code>Expand the selection</code>.</p>
@@ -460,7 +460,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Cells that contain non-numerical values are not colored. This
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@@ -546,7 +546,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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   "dateCreated": "2023-05-03",
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diff --git a/05-exporting-data.html b/05-exporting-data.html
index 5ff6968..f895f9c 100644
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   "dateCreated": "2023-05-03",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-25"
+  "datePublished": "2023-08-01"
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diff --git a/404.html b/404.html
index c441300..f1434f5 100644
--- a/404.html
+++ b/404.html
@@ -302,8 +302,8 @@ <h1>Page not found</h1>
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-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 48cd459..200b37d 100644
--- a/CODE_OF_CONDUCT.html
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@@ -326,7 +326,7 @@ <h1>Contributor Code of Conduct</h1>
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diff --git a/LICENSE.html b/LICENSE.html
index 5902a10..6274769 100644
--- a/LICENSE.html
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diff --git a/NEWS.html b/NEWS.html
index dc0432d..d7356b7 100644
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diff --git a/aio.html b/aio.html
index 23545e4..fcf37e9 100644
--- a/aio.html
+++ b/aio.html
@@ -699,7 +699,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <div class="accordion-body">
 <ul>
 <li>Take about 10 minutes to work on this exercise.</li>
@@ -1408,7 +1408,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><img src="fig/solution_exercise_1_dates.png" class="figure"> {alt=‘dates, exersize
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   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>To get the year, type <code>=YEAR(NOW())</code> into any cell in
@@ -1559,7 +1559,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul>
 <li>Click to the <code>dates</code> tab of the workbook and double-click
@@ -1811,7 +1811,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </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.
 Make sure you select <code>Expand the selection</code>.</p>
@@ -1869,7 +1869,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Cells that contain non-numerical values are not colored. This
 includes both the cells where the letter “g” was included and the empty
@@ -2147,8 +2147,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
+  "dateModified": "2023-08-01",
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 }
 
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diff --git a/datamanagement.html b/datamanagement.html
index 70e7902..ff6488e 100644
--- a/datamanagement.html
+++ b/datamanagement.html
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   "dateCreated": "2023-05-03",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-25"
+  "datePublished": "2023-08-01"
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diff --git a/discuss.html b/discuss.html
index 69adb81..fb3dc73 100644
--- a/discuss.html
+++ b/discuss.html
@@ -378,7 +378,7 @@ <h3 id="dealing-with-commas-as-part-of-data-values-in-csv-files">Dealing with co
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   "dateCreated": "2023-05-03",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-25"
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diff --git a/images.html b/images.html
index b7b3f29..bc0cb58 100644
--- a/images.html
+++ b/images.html
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   "identifier": "https://preview.carpentries.org/spreadsheet-ecology-lesson/images.html",
   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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+  "datePublished": "2023-08-01"
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diff --git a/index.html b/index.html
index 52b927c..4278da5 100644
--- a/index.html
+++ b/index.html
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/instructor-notes.html b/instructor-notes.html
index 5584e76..cfa27e2 100644
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/instructor/00-intro.html b/instructor/00-intro.html
index c0c6c6a..9ca8009 100644
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   "dateCreated": "2023-05-03",
   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-25"
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 }
 
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diff --git a/instructor/01-format-data.html b/instructor/01-format-data.html
index 8a94c77..70a07a2 100644
--- a/instructor/01-format-data.html
+++ b/instructor/01-format-data.html
@@ -449,7 +449,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </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">
 <ul><li>Take about 10 minutes to work on this exercise.</li>
 <li>All the mistakes in <a href="02-common-mistakes.html">02-common-mistakes</a> are present in the
@@ -561,7 +561,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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-  "datePublished": "2023-07-25"
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diff --git a/instructor/02-common-mistakes.html b/instructor/02-common-mistakes.html
index 6dda038..cb759c5 100644
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   "dateModified": "2023-05-03",
-  "datePublished": "2023-07-25"
+  "datePublished": "2023-08-01"
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diff --git a/instructor/03-dates-as-data.html b/instructor/03-dates-as-data.html
index 10c5b8b..6610099 100644
--- a/instructor/03-dates-as-data.html
+++ b/instructor/03-dates-as-data.html
@@ -362,7 +362,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><img src="../fig/solution_exercise_1_dates.png" class="figure"> {alt=‘dates, exersize
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@@ -402,7 +402,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>To get the year, type <code>=YEAR(NOW())</code> into any cell in
 your spreadsheet. To get the month, type <code>=MONTH(NOW())</code>. To
@@ -504,7 +504,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul><li>Click to the <code>dates</code> tab of the workbook and double-click
 on any of the values in the <code>Date collected</code> column. Notice
@@ -654,7 +654,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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   "dateModified": "2023-05-03",
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diff --git a/instructor/04-quality-control.html b/instructor/04-quality-control.html
index c9c5ba9..951f97c 100644
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   Show me the solution
   </h4>
 </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.
 Make sure you select <code>Expand the selection</code>.</p>
@@ -462,7 +462,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Cells that contain non-numerical values are not colored. This
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@@ -548,7 +548,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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-  "datePublished": "2023-07-25"
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diff --git a/instructor/05-exporting-data.html b/instructor/05-exporting-data.html
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-  "datePublished": "2023-07-25"
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index b7571d2..e841ddd 100644
--- a/instructor/CODE_OF_CONDUCT.html
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   "dateCreated": "2023-05-03",
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-  "datePublished": "2023-07-25"
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index a4cf3dd..d2f8df1 100644
--- a/instructor/LICENSE.html
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diff --git a/instructor/NEWS.html b/instructor/NEWS.html
index 6bcb65b..badbc90 100644
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index 7ef822f..50dd25e 100644
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <ul>
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@@ -1410,7 +1410,7 @@ <h4 class="accordion-header" id="headingSolution1">
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-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
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@@ -1561,7 +1561,7 @@ <h4 class="accordion-header" id="headingSolution3">
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-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ul>
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@@ -1814,7 +1814,7 @@ <h4 class="accordion-header" id="headingSolution1">
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   </h4>
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-<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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@@ -1872,7 +1872,7 @@ <h4 class="accordion-header" id="headingSolution2">
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   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Cells that contain non-numerical values are not colored. This
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@@ -2151,8 +2151,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/instructor/datamanagement.html b/instructor/datamanagement.html
index 828c10e..8a4e200 100644
--- a/instructor/datamanagement.html
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@@ -390,7 +390,7 @@ <h1>Data Management Tips</h1>
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diff --git a/instructor/discuss.html b/instructor/discuss.html
index d47039b..2c58a9c 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -380,7 +380,7 @@ <h3 id="dealing-with-commas-as-part-of-data-values-in-csv-files">Dealing with co
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diff --git a/instructor/images.html b/instructor/images.html
index 39e4ade..ebf8fb2 100644
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
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diff --git a/instructor/index.html b/instructor/index.html
index 576d26c..f0173de 100644
--- a/instructor/index.html
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
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diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 0692f28..e140600 100644
--- a/instructor/instructor-notes.html
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-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/instructor/key-points.html b/instructor/key-points.html
index 6b5c5e9..6b678bd 100644
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/instructor/profiles.html b/instructor/profiles.html
index 6f9ab6c..2a59300 100644
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
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 }
 
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diff --git a/instructor/reference.html b/instructor/reference.html
index bf97bab..f6f4d5a 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
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   "dateCreated": "2023-05-03",
   "dateModified": "2023-05-03",
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diff --git a/key-points.html b/key-points.html
index d0ce377..bf92720 100644
--- a/key-points.html
+++ b/key-points.html
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   "dateCreated": "2023-05-03",
-  "dateModified": "2023-07-25",
-  "datePublished": "2023-07-25"
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diff --git a/pkgdown.yml b/pkgdown.yml
index 8103a23..d7a741c 100644
--- a/pkgdown.yml
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@@ -2,5 +2,5 @@ pandoc: 2.19.2
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index 24222ab..e5d8cd3 100644
--- a/profiles.html
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-  "dateModified": "2023-07-25",
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diff --git a/reference.html b/reference.html
index c8cb6c6..741f8ce 100644
--- a/reference.html
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