Greetings, can someone please tell me which files to edit for the Shopping Cart and Order Summary pages. My changes in content.html and cart-items.html do not show on frontend.
Thanks for your attention.

Hi @Sheba
File path should be below:
vendor/magento/module-tax/view/frontend/web/template/checkout/summary/shipping.html
Add your custom <span class="title">Custom Text</span> text like below example
<tr class="totals shipping excl">
<th class="mark" scope="row">
<span class="title">Custom Text</span>
<span class="label" data-bind="i18n: title"></span>
<span class="value" data-bind="text: getShippingMethodTitle()"></span>
</th>
<td class="amount">
<!-- ko if: isCalculated() -->
<span class="price"
data-bind="text: getValue(), attr: {'data-th': title}"></span>
<!-- /ko -->
<!-- ko ifnot: isCalculated() -->
<span class="not-calculated"
data-bind="text: getValue(), attr: {'data-th': title}"></span>
<!-- /ko -->
</td>
</tr>
<!-- /ko -->Run below commands:
php bin/magento setup:upgrade php bin/magento setup:static-content:deploy
It may help you!
Problem Solved ? Please click on 'Kudos' & Accept as Solution!
Thanks for your response but it did not work. Just need to change wording on the shopping cart and checkout pages.
Was able to make a word change in /app/design/frontend/theme/Magento_Checkout/web/template/summary/cart-items.html