diff --git a/README.md b/README.md
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+# CSV Viewer Online
+### [https://csv-viewer-online.github.io/](https://csv-viewer-online.github.io/)
+
+### Used plugins:
+
+- [PapaParse](https://github.com/mholt/PapaParse) for parsing CSV
+- [handsontable](https://github.com/handsontable/handsontable) for showing the parsed data as a spreadsheet
diff --git a/app.js b/app.js
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+const input = document.getElementById('input-file')
+const handsontableContainer = document.getElementById('handsontable-container')
+
+input.onchange = function () {
+ const file = this.files[0]
+ const reader = new FileReader()
+
+ reader.onload = function (e) {
+ const csv = e.target.result
+ const data = Papa.parse(csv, {
+ header: true,
+ skipEmptyLines: true
+ })
+
+ // reset container
+ handsontableContainer.innerHTML = ''
+ handsontableContainer.className = ''
+ document.querySelector('input').remove()
+ document.querySelector('.sponsors').remove()
+
+ Handsontable(handsontableContainer, {
+ data: data.data,
+ rowHeaders: true,
+ colHeaders: data.meta.fields,
+ columnSorting: true,
+ width: '100%',
+ licenseKey: 'non-commercial-and-evaluation',
+ })
+ }
+
+ file && reader.readAsText(file)
+}
diff --git a/favicon.png b/favicon.png
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diff --git a/index.html b/index.html
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+
+
+ CSV Viewer Online
+
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diff --git a/styles.css b/styles.css
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+++ b/styles.css
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+html, body {
+ height: 100%;
+ margin: 0;
+}
+
+* {
+ box-sizing: border-box;
+}
+
+body {
+ display: flex;
+ flex-direction: column;
+ align-items: center;
+ justify-content: center;
+ font-family: Montserrat, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', Helvetica, Arial, sans-serif;
+}
+
+#handsontable-container.handsontable {
+ height: 100%;
+}
+
+.sponsors {
+ position: fixed;
+ top: 20px;
+ display: flex;
+ justify-content: center;
+ flex-wrap: wrap;
+ gap: 20px;
+}
+
+.sponsors a {
+ margin: 0 30px;
+ display: inline-flex;
+ flex-direction: column;
+ border-radius: 5px;
+ text-decoration: none;
+ max-width: calc(300px + 2*20px + 2*3px);
+}
+
+.sponsors a:hover {
+ text-decoration: underline;
+}
+
+.sponsors a span {
+ font-size: 14px;
+ margin-bottom: 18px;
+ text-align: center;
+}
+
+.sponsors div {
+ width: 100%;
+ text-align: center;
+}
+
+.place-your-ad-here {
+ display: inline-block;
+ border: 3px solid #126BCF;
+ border-radius: 5px;
+ color: #126BCF;
+ font-weight: bold;
+ padding: 10px 25px;
+ text-align: center;
+ line-height: 1.5;
+}
diff --git a/tabootwin.png b/tabootwin.png
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