Open Microsoft Excel. Go to “ File > Options > Trust Center.” Now, click on the Trust Center Settings button. Select Protected View from the left side. Uncheck all the options on the right ...

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.

Numbers has the ability to open Excel files so you can work on them. You can also export spreadsheets in Numbers so that they are compatible with Excel.

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A new open source player is taking on Microsoft’s project management suite, but faces a tough challenge.

Somewhat off topic, but there are some network/server related pointsDoes anyone else have a significant problem with Project file corruption? Our standard is 2000, but I personally have had ...

Overview Excel alternatives like Google Sheets support collaboration but struggle with large files.LibreOffice Calc works ...