Merci pour cette réponse.
J'ai supprimé ces fichiers et réinstallé office selon la procédure mais malheureusement toujours le même crash à l'ouverture d'un fichier, yc. un nouveau document.
Voici les traces
C'est bien la version indiquée.
Romain
Process: wr-mono [6636]
Path: /Library/Application Support/Microsoft/*/wr-mono
Identifier: wr-mono
Version: ???
Code Type: X86-64 (Native)
Parent Process: ??? [6630]
User ID: 502
Date/Time: 2020-04-04 20:17:35.255 +0200
OS Version: Mac OS X 10.15.4 (19E266)
Report Version: 12
Anonymous UUID: DF292565-23E9-4EA3-0D30-64EFCF6D5F41
Time Awake Since Boot: 2900 seconds
System Integrity Protection: enabled
Crashed Thread: Unknown
Exception Type: EXC_CRASH (Code Signature Invalid)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: Namespace CODESIGNING, Code 0x1
kernel messages:
Backtrace not available
Unknown thread crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000000000000000 rcx: 0x0000000000000000 rdx: 0x0000000000000000
rdi: 0x0000000000000000 rsi: 0x0000000000000000 rbp: 0x0000000000000000 rsp: 0x00007ffeebacad78
r8: 0x0000000000000000 r9: 0x0000000000000000 r10: 0x0000000000000000 r11: 0x0000000000000000
r12: 0x0000000000000000 r13: 0x0000000000000000 r14: 0x0000000000000000 r15: 0x0000000000000000
rip: 0x00000001116b2000 rfl: 0x0000000000000200 cr2: 0x0000000000000000
Logical CPU: 0
Error Code: 0x00000000
Trap Number: 0
Binary images description not available
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 1676
thread_create: 0
thread_set_state: 0
Model: iMac18,2, BootROM 181.0.0.0.0, 4 processors, Quad-Core Intel Core i5, 3.4 GHz, 8 GB, SMC 2.40f1
Graphics: kHW_AMDRadeonPro560Item, Radeon Pro 560, spdisplays_pcie_device, 4 GB
Memory Module: BANK 0/DIMM0, 4 GB, DDR4 SO-DIMM, 2400 MHz, 0x802C, 0x344154463531323634485A2D3247334232202020
Memory Module: BANK 1/DIMM0, 4 GB, DDR4 SO-DIMM, 2400 MHz, 0x802C, 0x344154463531323634485A2D3247334232202020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x16E), Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1600.4)
Bluetooth: Version 7.0.4f6, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: APPLE HDD HTS541010A9E632, 1 TB
USB Device: USB 3.0 Bus
USB Device: Bluetooth USB Host Controller
USB Device: FaceTime HD Camera (Built-in)
USB Device: Deskjet 2540 series
Thunderbolt Bus: iMac, Apple Inc., 41.4