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.

Tips & Tricks to use Tabs in File Explorer in Windows 11. You can add new tabs, re-arrange tabs, scroll the tab list in File Explorer, and more.

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.

Microsoft will soon be blocking external links to blocked file types in Excel. This is part of a broader effort to reduce or disable exploits that have previously been used to infect users with ...

Your Kindle isn't restricted to books from Amazon. Here's how to send other ebook formats to your ereader, and where to get free ebooks, including with Amazon's Stuff Your Kindle events.

When you're reformatting a drive, memory card, or flash drive you need to pick a file format. If you see FAT32, exFAT, and NTFS, but don't know which one to pick, here's what you need to know.

Using relative and radiometric dating methods, geologists are able to answer the question: how old is this fossil?

The Income Tax Department has rolled out the excel utility for ITR-6 for AY 2025-26. But this form isn't meant for everyone — here's who is required to use it.

Foreign object debris (FOD) is any undesired and unintended object placed or found in the specific vicinity of an aircraft (runway/ taxiway) that can cause damage to aircraft or harm personnel on ...