Αποτελέσματα Αναζήτησης
9 Μαΐ 2020 · You can simply achieve this by adding accept attribute to your input like this: <input type="file" accept=".csv" />. But if you want to be much more clear and accept all version of excel you should use this one instead: <input type="file" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" />.
21 Νοε 2010 · $(function { $('input[type=file]').change(function { var val = $(this).val().toLowerCase(), regex = new RegExp("(.*?)\.(docx|doc|pdf|xml|bmp|ppt|xls)$"); if (!(regex.test(val))) { $(this).val(''); alert('Please select correct file format'); } }); });
9 Οκτ 2024 · To validate file types on the client side, we can use a JavaScript function to check the file extension against a list of allowed extensions. Here’s a simple approach using the fileValidation () function that leverages regular expressions (regex) to determine if the uploaded file’s extension matches the allowed types.
23 Ιαν 2023 · In this article, we will discuss how to work with XLSX files in JavaScript, including reading, creating, and importing XLSX files. Installing the xlsx library:
23 Απρ 2021 · In this example, I showed how to validate a file in .xlsx format in a simple way. It is a solution that can be improved a lot, but the objective was to show how easy it can be to validate an Excel-formatted file.
When you open a file in Excel, you get an message that the file name extension doesn't match the actual file format. For example, the file has an .xlsx file name extension but it's really a text file and should have a .txt file name extension.
15 Ιαν 2021 · Resetting the Excel file associations will restore Excel to its default settings, undoing any damaging alterations to the program. In most cases, that can help resolve all issues and ensure the program is running smoothly once again.
