Vers. 7.1.2.2 Calc gives "general input/output error" when trying to "save" or "save as" spreadsheet

Also gives error when trying to simply close window. All I did was add one figure. Triple-checked input was valid.

Have you just upgraded LibreOffice? What OS are you using?

If just upgraded LO on Mac, try removing disk access for LibreOffice and then giving it again. Remove and give LibreOffice full disk access from System Preferences > Security & Privacy. See this site on how to do it if you aren’t sure: Explained: What is Full Disk Access & Full Permissions on macOS Mojave .

Windows 10. Updated LO about a week ago

It might be your anti virus blocking the new version of the LibreOffice.

Allow LibreOffice access to controlled folder

The below numbered list is from Use the Windows Defender Security app to allow specific apps

  1. Open the Windows Security by
    selecting the shield icon in the
    task bar or searching the start menu
    for Defender.
  2. Select the Virus & threat
    protection
    tile (or the shield
    icon on the left menu bar) and then
    select Ransomware protection.
  3. Under the Controlled folder
    access
    section, select Allow an
    app through Controlled folder
    access
  4. Select Add an allowed app and
    follow the prompts to add apps. You
    need to allow access to
    soffice.bin

3rd Party Anti-virus

If you do have a third party anti-virus go into settings and then look for something like anti-ransomware or folder protection. Have a look at the blocked apps list, if you see soffice.bin in there change it to Allowed (you might have to read AV help if not obvious). Otherwise go to the Allowed Apps setting and allow soffice.bin, this might not be easy so you might have to change the file type to All to see it and to add to the Allowed list or Whitelist. Note that 3rd party anti-virus might make files Read Only so you can create a new file but you can’t save it subsequently. Sometimes, you might need to reboot after allowing a program access.

Cheers, Al