Calc files will not save

Running version 7.1.3.3. When I go to save a file either in Excel 2007-365 format or ODF it tells me
tError saving the document AA_MONTHLYS_forhome:
Write Error.
The file could not be written.

Windows? Defender controlled? Then see this FAQ.

Please do not use the Answer field, add a comment or edit your original question to provide further details. Thanks.

If another antivirus is in use, then add soffice.bin to that antivirus’s whitelist, allowed programs, or anti ransomware allowed programs. You might need to change the file type to All Files to navigate to soffice.bin.