If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

VBA报错55的官方定义为“文件已打开”（File already open），属于文件操作类错误，当程序试图通过VBA代码打开、写入或删除某个文件，而该文件已被其他进程（包括VBA自身）占用时，系统会触发此错误，常见的操作语句包括、、或等。

The guide provides insight into how to use the hidden “FILES” function in Excel, a legacy macro function that lists all files in a specified folder. MyOnlineTrainingHub takes you through how ...

If you are a Microsoft 365 user at some point, you may need to open an older version of Excel file. The automatic saving and version control features of Excel have made it even more sophisticated.

Spread the loveMicrosoft Excel is a widely used spreadsheet software that allows users to manage, analyze, and visualize data with ease and precision. The process of opening an Excel file might seem ...

This VBA Excel script is designed to extract the paths of all files within a specified folder and its subfolders. It presents a user interface to select the folder, and then prompts for the type of ...

Go to File > Open and select your Excel file. After opening the file in Excel Safe Mode, save it in a different format through File > Save As, selecting either .csv or .xls.

If you can't use SharePoint to open or share Excel and Word files, we've got a few quick solution for you. Don't hesitate to try them out.

If you want to to open multiple excel windows at the same time, first use the Excel Jump List, then open multiple Excel windows from the Start menu.