Fix 0xc00d5212 Codec Error: This item was encoded in a format not supported (0xc00d5212) you receive when playing videos on Windows 11/10.

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.

You can also try to open the workbook in a competing product and then resaving the file in another format that's compatible with Excel.

You can open or import a surprising number of file formats into Microsoft Word. Not to be confused with file formatting, which—in most programs—refers to the design of a page, file formats are ...

The Open Document Format, XML Paper Specification, PDF 1.5 and PDF/Archive file formats will be better supported.

SVG is short for Scalable Vector Graphics, a resolution-independent file format for images like logos and diagrams.

PNG, short for Portable Network Graphics, is a popular and high-quality graphic file format. The PNG format is lossless and supports transparency.

Ankush khandelwal asked about compatibility issues between files created in different versions of Microsoft Office--specifically the big changes in file format that came with Office 2007.