Office 365 Alternatives - File Compatibility/Functionality


My priority, is not an Office suite that works on Linux and Windows.

The point of this thread, is, are docs produced by LibreOffice, 100% file compatible with Ms Office.

Feedback I'm receiving is, maybe on Windows, not likely on Linux.

Win 10 install in progress...
I interchange files freely between my laptop Windows (Softmaker Office) and my desktop (Linux, Softmaker Office) and have only encountered problems when the installed fonts don't match. i.e. using a Linux default font when producing a Softmaker word processor document with pictures, and then finding the formatting is wrong in Softmaker (TextMaker) when opened in Windows. Making the fonts the same solved the problem. I assume the same issue would happen if the receiving computer had MS Word on it also. Of course, one should really use a Desktop Publishing program if producing a complex document with words and pictures.
 

My Computers

System One System Two

  • OS
    Linux Mint (22.3) and Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    Ryzen 3900x
    Motherboard
    Gigabyte Aorus Master x570 rel 1.0
    Memory
    32GB (2x16) @ 3600 MHz Corsair Vengeance LPX
    Graphics Card(s)
    Asus Geforce RTX 5060 Ti Dual OC 16 GB
    Sound Card
    No separate sound card.
    Monitor(s) Displays
    Dell U2718Q
    Screen Resolution
    3840x2160
    Hard Drives
    1TB WD-Black SN850; 1TB Samsung Sata 850 Evo; 4 TB WD Blue Sata SA510 2.5''; 4TB Samsung Sata SSD 870 EVO 2.5".
    PSU
    Be Quiet Dark Power Pro 11 750W
    Case
    Lian Li PC-8FIB
    Cooling
    CPU: Noctua NH-U12A; Case: BeQuiet + Lian Li fans.
    Keyboard
    Steelseries Apex 7 brown keys.
    Mouse
    Logitech (wired) G403
    Internet Speed
    940 Mb/s down; 105 Mb/s up
    Browser
    Firefox
    Other Info
    Pioneer blu-ray optical drive.
  • Operating System
    Windows 11 Home (ARM version) (latest update)
    Computer type
    Laptop
    Manufacturer/Model
    Samsung Galaxy Book4 Edge 14" Copilot+ PC
    CPU
    Qualcomm Snapdragon X Elite X1E-80-100
    Memory
    16 GB LPDDR5
    Graphics card(s)
    Qualcomm Adreno
    Monitor(s) Displays
    Touch screen 14" AMOLED monitor
    Screen Resolution
    2880x1800
    Hard Drives
    512 GB eUFS
    Internet Speed
    930 Mb/s (Wifi)
    Browser
    Firefox
    Antivirus
    Eset Internet Security
    Other Info
    NPU Qualcomm Hexagon
The point of this thread, is, are docs produced by LibreOffice, 100% file compatible with Ms Office.

Feedback I'm receiving is, maybe on Windows, not likely on Linux.
There's no difference between LibreOffice on Windows vs Linux. And it's mostly compatible. Only rare cases may not work
 

My Computers

System One System Two

  • OS
    Win 11 Pro 25H2 26200.8457 / Linux Mint 22.3
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    125W(Dock)/65W(Travel Adapter)
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Win 11 Pro 25H2 26200.8521(RP)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Keyboard
    Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
For fonts used by MS, one can install the MS-fonts package on Linux and everything should look the same under LibreOffice.
 

My Computers

System One System Two

  • OS
    Win 11 Pro 25H2 26200.8457 / Linux Mint 22.3
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    125W(Dock)/65W(Travel Adapter)
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Win 11 Pro 25H2 26200.8521(RP)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Keyboard
    Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
This is what I see in Softmaker PlanMaker:
I didn't think it would be fully editable and controllable, as it was posted as a View Only...

11853.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    ASUS ROG Strix
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    ASUS VivoBook
For fonts used by MS, one can install the MS-fonts package on Linux and everything should look the same under LibreOffice.

"Should", is the topic in question here..


Have now decide to re-install Windows 10 on 2nd machine, and try Office 2021
 

My Computers

System One System Two

  • OS
    Fedora/KDE Plasma F43
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Z640
    CPU
    Xeon 2667 v4
    Motherboard
    Xeon V4 Motherboard
    Memory
    48GB ECC DDR4
    Graphics Card(s)
    nVidia GTX 1650
    Monitor(s) Displays
    LG 27"
    Screen Resolution
    1920x1080@144hz
    Hard Drives
    NVME, SSD
    PSU
    850W
  • Operating System
    Windows 11 IOT Enterprise LTSC/RHEL 10.1 KDE Plasma
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP Z440
    CPU
    Intel Xeom 2680 V4
    Motherboard
    HP Z440
    Memory
    64gb DDR4 ECC
    Graphics card(s)
    AMD RX560
    Monitor(s) Displays
    LG Gsync 27" 144hz
    Screen Resolution
    1920x1080@144hz
    Hard Drives
    SSD/nVme/HDD
    PSU
    standard 700W
    Case
    standard
    Cooling
    Standard
    Browser
    MS Edge
    Antivirus
    BitDefender
"Should", is the topic in question here..


Have now decide to re-install Windows 10 on 2nd machine, and try Office 2021
Ultimately, of course, it's whatever works best for you. I would recommend testing the alternatives to see if they meet your needs.
 

My Computers

System One System Two

  • OS
    Linux Mint (22.3) and Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home built
    CPU
    Ryzen 3900x
    Motherboard
    Gigabyte Aorus Master x570 rel 1.0
    Memory
    32GB (2x16) @ 3600 MHz Corsair Vengeance LPX
    Graphics Card(s)
    Asus Geforce RTX 5060 Ti Dual OC 16 GB
    Sound Card
    No separate sound card.
    Monitor(s) Displays
    Dell U2718Q
    Screen Resolution
    3840x2160
    Hard Drives
    1TB WD-Black SN850; 1TB Samsung Sata 850 Evo; 4 TB WD Blue Sata SA510 2.5''; 4TB Samsung Sata SSD 870 EVO 2.5".
    PSU
    Be Quiet Dark Power Pro 11 750W
    Case
    Lian Li PC-8FIB
    Cooling
    CPU: Noctua NH-U12A; Case: BeQuiet + Lian Li fans.
    Keyboard
    Steelseries Apex 7 brown keys.
    Mouse
    Logitech (wired) G403
    Internet Speed
    940 Mb/s down; 105 Mb/s up
    Browser
    Firefox
    Other Info
    Pioneer blu-ray optical drive.
  • Operating System
    Windows 11 Home (ARM version) (latest update)
    Computer type
    Laptop
    Manufacturer/Model
    Samsung Galaxy Book4 Edge 14" Copilot+ PC
    CPU
    Qualcomm Snapdragon X Elite X1E-80-100
    Memory
    16 GB LPDDR5
    Graphics card(s)
    Qualcomm Adreno
    Monitor(s) Displays
    Touch screen 14" AMOLED monitor
    Screen Resolution
    2880x1800
    Hard Drives
    512 GB eUFS
    Internet Speed
    930 Mb/s (Wifi)
    Browser
    Firefox
    Antivirus
    Eset Internet Security
    Other Info
    NPU Qualcomm Hexagon

My Computers

System One System Two

  • OS
    Win 11 Pro 25H2 26200.8457 / Linux Mint 22.3
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    125W(Dock)/65W(Travel Adapter)
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Win 11 Pro 25H2 26200.8521(RP)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Keyboard
    Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
I didn't think it would be fully editable and controllable, as it was posted as a View Only...

View attachment 159121

It is, fully editable - using your own designated formatting:

12.webp

And yes hovering over linked content - displays the sourced web address:

wq.webp

Reverse compatibility (fully) - became a thing more than a decade ago, pretty standard this days and for quite some time now. :)

PS. It's View Only on webpage alone (you can't edit it with google docs) - but If you click on "File" you can also Download it as .xlsx, .pdf, .html, etc.
 

My Computer

System One

  • OS
    WinDOS 25H2
    Computer type
    Laptop
    CPU
    Intel & AMD
    Memory
    SO-DIMM SK Hynix 15.8 GB Dual-Channel DDR4-2666 (2 x 8 GB) 1329MHz (19-19-19-43)
    Graphics Card(s)
    nVidia RTX 2060 6GB Mobile GPU (TU106M)
    Sound Card
    Onbord Realtek ALC1220
    Screen Resolution
    1920 x 1080
    Hard Drives
    1x Samsung PM981 NVMe PCIe M.2 512GB / 1x Seagate Expansion ST1000LM035 1TB
I cloned the project to my Google, and there I'm the author so I can do whatever I want.
 

My Computers

System One System Two

  • OS
    Win 11 Pro 25H2 26200.8457 / Linux Mint 22.3
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    125W(Dock)/65W(Travel Adapter)
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Win 11 Pro 25H2 26200.8521(RP)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Keyboard
    Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
I'd be interested to see how other Suites handle the likes of this xlsx
I converted it to Excel to see what it looks like. I don't think this is what you were asking for - nevertheless.

It's only image here.


Screenshot 2026-01-06 132525.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2 26200.8457
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Tower Plus EBT2250, DOB: 06/15/2025
    CPU
    Intel® Core™ Ultra 7 265 1.8GHz to 5.3GHz (Arrow Lake)
    Motherboard
    Dell Inc. 02D3NT A00 (U3E1)
    Memory
    SK Hynix 32GB DDR5 5600 Desktop RAM UDIMM Non-ECC PC5-5600B
    Graphics Card(s)
    Dell NVIDIA® GeForce RTX™ 4060 8GB GDDR6 & (iGPU) Integrated Intel® UHD Graphics
    Sound Card
    Chipset Realtek High-Definition Audio with Dolby Atmos
    Monitor(s) Displays
    Dell Ultra Sharp U2515H 25-Inch Screen LED-Lit
    Screen Resolution
    2560 X 1440
    Hard Drives
    Samsung (NVMe PM9C1a 1024GB) M.2 PCIe NVMe Solid State Drive (OS), with Samsung Piccolo (S4LY022) 6-Core 4 Channel Controller.

    Samsung T7 500GB SSD, USB-C External Drive
    PSU
    Dell 460W
    Case
    Dell Tower Plus EBT 2250
    Cooling
    Fan
    Keyboard
    Dell Wired Keyboard - KB216
    Mouse
    Logitech M510
    Internet Speed
    Intel Killer E3100G 2.5 Gigabit Ethernet Controller
    Browser
    Microsoft Edge
    Antivirus
    Microsoft Windows Security
    Other Info
    The Samsung NVMe PM9C1a 1024GB SSD does not use a Phison NAND controller. Instead, it uses Samsung's in-house developed Piccolo (S4LY022) 6-Core 4 Channel Controller. The PM9C1a utilizes a controller built using Samsung's 5-nanometer process and seventh-generation V-NAND technology. 🤔
  • Operating System
    Windows 11 Pro 25H2 26200.8457
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inspiron 15 7000 (7591) 2-in-1, DOB: 11/30/2019
    CPU
    10th Generation Intel Core i7-10510U Processor (8MB Cache, up to 4.9 GHz) Comet Lake
    Motherboard
    Dell 0NNW5N
    Memory
    16GB DDR4 RAM
    Graphics card(s)
    NVIDIA® GeForce® MX250 with 2GB GDDR5 graphics memory
    Sound Card
    Chipset Realtek ALC3254 🤔🤣
    Monitor(s) Displays
    Dell 15.6-inch UHD Truelife Touch Narrow Border WVA Display with Active Pen support
    Screen Resolution
    3840 x 2160
    Hard Drives
    Intel NVME 512GB SSD with 32GB Intel Optane Memory, M.2 80mm PCIe 3.0 RAID

    SanDisk 256GB Extreme microSDXC UHS-I Memory Card
    PSU
    Dell 4-Cell Battery, 68 Whr (Integrated), 90 Watt AC Adapter
    Case
    Dell Inspiron 15 7000 2-in-1 (7591)
    Cooling
    Standard Dell Case Fan & Havit HV-F2056 USB Powered (3 Fans) Laptop Cooling Pad.
    Keyboard
    Dell
    Mouse
    Logitech Wireless Mouse M650L
    Internet Speed
    Wireless/Wired connectivity (WiFi 6 - 802.11 ax)
    Browser
    Microsoft Edge
    Antivirus
    Microsoft Windows Security
    Other Info
    From Dell: 512GB NVME Solid State Drive accelerated by 32GB Intel Optane Memory are the fastest as compared to NAND SSDs. Intel Optane H10 with SSD offers speedy storage and accelerates opening your programs.

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