export function convertFileToBlob(file: any): Promise { return new Promise((resolve, reject) => { const reader = new FileReader(); reader.onload = function (event: any) { const blob = new Blob([event.target.result], { type: file.type }); resolve(blob); }; reader.onerror = function () { reject(new Error('Error reading the file.')); }; reader.readAsArrayBuffer(file); }); }