Lotus 1-2-3 spreadsheet files typically end with .wk1 or another number. If you still have Lotus software on your computer, save the file as a .csv (comma separated value).

I have a folder full of .MHT files created by selecting "Save As "Web Archive, Single File". I have never had any trouble opening them on my PC, or any other PC running a current version of IE.

How to open a CSV file in Microsoft Excel 1. In Excel's ribbon, click the File tab and then click Open. 2. Click Browse and, in the File Explorer box, click the drop-down menu to the right of the ...

While you can open RAR files in Windows 11/10, it’s not supported by default. We will have to use third-party free compression software to uncompress a RAR file to extract all the files and ...

The file will open and you can work with it. One thing to keep in mind is that Samba does use file locking, so if you attempt to open a file that's already in use, you'll see a warning (Figure 4).

The Notepad application is able to open files at least as large as 512 MB (megabytes) but fails to open 1 GB (gigabyte). The Notepad++ 64-bit could go to at best 2GB.

Windows 8.1 You can change a default app in Windows 8.1 through File Explorer, Settings, or Control Panel. To use File Explorer, right-click on the file type you wish to control and select Open ...